We are excited to announce that we are holding a tactics solving contest for a chance to win a free access to 21 Days to Supercharge Your Chess Program. To enter the contest your need to solve all 5 tactics problems and comment with your solutions below. The 2 best solutions (correct notation, all lines analyzed, etc.) will get a free access to the training course.
Here are the 5 problems:
Position #1
White to move and mate in 3
Position #2
White to move and mate in 3
Position #3
White to move and mate in 3
Position #4
White to move and mate in 3
Position #5
White to move and mate in 3
Don’t forget to comment (make sure to use current email address) with your solution in the comment field below and watch this space because you can be the winner!
The solutions will be posted and the winners will be announced on February 22nd, 2015.
***
We have concluded the Contest and the winners are:
First Place: Arjoe Loanzon
We have had a hard time deciding the second prize winner because 3 solvers did almost equally well: Jun S.Gutierrez, Felix Teichert and M. Krutský.
After careful consideration we have decided to grant the prize to:
Second Place: M. Krutský
Thank you, to all participants and winners. For all those who have submitted their solutions and did not win we will give a 25% discount for the course. Expect an email from us shortly!
Team TheChessWorld.com
Official Solutions:
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1st problem:
1. Qc1 Bf5 ( 1… g3 2. Qxc8# ) ( 1… Bb7 2. Qf4 g3 ( 2… Bg2 3. Qh2# ) ( 2… g3 3. Qf5# ) 3. Qf5# ) ( 1… Bd7 2. Qc7 g3 ( 2… d2 3. Qh2# ) 3. Qxd7# ) ( 1… Be6 2. Qe3+ g3 3. Qxe6# ) ( 1… d2 2. Qc3+ g3 3. Qxc8# ) 2. Qf4 Be6 ( 2… g3 3. Qxf5# ) ( 2… d2 3. Qe3+ ) 3. Qh2#
2nd problem:
1. Rb3 Kxc8 (a1=D 2. Ba5+ Kxc8 Bh3# ) 2. Rd3 Kb8 3. Rd8#
3rd problem:
TODO !
Position 1 – #Qe3
Position 2 – stalemate is easily possible here .
Position 3 – Rf3 Qc8 ,Be6 Qd8 , #Rh3
Position 4 – Rb4 Pa3 , Bb2 Ka2 ,#bd5
position 5- Qd4 Ke2 , N c3 kf3, #Qf4
First one
1.Qc1 d2 2.Qc3+g3 3.Qxc8 ++
1.Qc1 GB5 2.Qf4 d2 3.Qh2 ++
Second one
1.Rb3 h8=Q 2.Ba5 Kxc8 3.Bh3++
Third one
1.Ra2 Qb3 2.Ra8 Qb8 3. Rxb8 ++
1.Ra2 Qc8 2.Rh2+ Qh3 3.Rxh3 ++
Fourth one
1. Rc4 Nd1 2.Rb4 Nb2 3.Bxb2
1.Rc4 Nd3 2.Ba3 Nc1 3. Rxc1 or 2..Kb1 3. Rc1++
Fith one
1.Ndc3 Bc1 2.Qe4+ Kd2 3.Qe2++
1..Bf8 2.Qa2 Ke3 3.Qe2++
Here are my solutions
[b]1[/b]. 1.Qc1! if 1..Kg3 2.Qe3#, if 1..g3 2.Q:B#,if 1..d2 2.Qc3+ g3 3.Q:B#,if 1..Bb7/Bd7 2.Qc7 g3 3.Qd7/Q:B#,if 1..Ba6/Be6 2.Qe3+ g3 3.Qe6/Q:B# and if 1..Bf5 2. Qf4 g3 3.Q:B#
[b]3[/b].1.Rf1! Qa8 2. Bd5 and if 2..Q:B 3.Rf8# or else 3.Rh1#(if 1.Rf5? Qe8!,if 1.Rf6? Qf4)
[b]4[/b]. 1.Kc3 Nc4 2.Rb4 ~ 3.Bb2#
if 1..Nd3 2.Rb4 N:R 3.Bb2# and 2..N:B 3.Rb1#
and if 1..Nd1 2.Kb3 ~ 3.Bb2#
[b]2[/b]. 1.Rb3 K:N 2.Rd3 ~ 3.Rd8#
1..a1=Q/R/N/B 2.Ba5+ K:N 3.Bh3#
[b]5[/b].
Contest solving 5 tactics puzzles. 1). Qe3# 2) 1. Rh8 a1= Q. 2. Nd63# 3) 1. Rg2 Qd6 2. Rg8# 4) 1. Be3 NXa4 2. Kc4 Nb6+ 3. Kb3 Na5+ 4. Kc3 Nc6 5. Bc2## 5) 1. QXa3 Kc4 2. Nc3 Kd4 3.Qb4+ Ke5 Qf4+ 4.Qf6+ Kd7 5. Qe7+ Kc8+ 6. Qc7#
#1 1.Qc1 Bf5[1…g3 2.Qxc8#; 1…d2 2.Qc3+ g3 3.Qxc8#; 1…Kg3 2.Qe3#; 1…Bb7 2.Qc7 g3 and 3.Qh2# or 3.Qd7#; 1…Ba6 2.Qe3+ g3 3.Qf5#; 1…Bd7 2.Qc7 g3 and Qh2# or 3.Qxd7#; 1…Be6 2.Qe3+ g3 3.Qxe6#] 2.Qf4 and Qh2# or 3.Qxf4#
#2 1.Rb3 Kxc8 [1…a1(Q), 1…a1(R), 1…a1(B) 2.Ba5+ Kxc8 3.Bh3#; 1…a1(N) 2.Rc3 Nc2 or 2…Nb3 3.Ba7#] 2.Rd3 anything 3.Rd8#
#3 1.Ra2 and black queen: a) stays on the h2-b8 diagonal, e.g. 1…Qd6, 2.Ra8+ and white mates black by taking black queen next move (except of 2…Qh2 3.Rxh2#); b) leaves the h2-b8 diagonal, e.g. 1…Qb5, 2.Rh2+ and white mates black by taking the queen on the h-file next move
#4 1.Rc4 Nxc4 [1…Nd1 2.Rb4 and 3.Bb2# or Bxb2#; 1…Nd3 2.Ba3 and 3.Rc1# or Rxc1# is coming; 1…Na4 2.Rb4 and 3.Bb2# or 3.Bxb2#] 2.Kc3 and again 3.Bb2# or 3.Bxb2#
#5 1.Ndc3 Kd2 [on 1…Bc5, 1…Bd6, 1…Be7 and 1…Bf8 white plays 2.Qa2 and 3.Qe2#; 1…Bc1 2.Qe4+ Kd2 3.Qe2#; 1…Bb2 2.Qd4+ Kc2 3.Qd1#; 1…Bb4 2.Qd1+ Ke3 (2…Kc4 3.Qd5#) 3.Qe2#; 1…Ke3 2.Qd4+ Kf3 3.Qf4#] 2.Qd1+ Ke3 3.Qe2#
I’m in this competition
Solution 1: 1.Qc1 Bb7 2.Qf4 d2 3.Qh2 mate
Solution 2: 1.Rb3 a1Q 2.Ba5+ Kxc8 3.Bh3 mate
Solution 3: 1.Ra2 Qe8 2.Rh2+ Qh5 3.Rxh5 mate
Solution 4: 1.Rc4 Nxc4 2.Kc3 Nb2 3.Bxb2 mate
Solution 5: 1.Ndc3 Bc5 2.Qa2 Ke3 3.Qe2 mate
#1. 1. Qe3#
#2. 1. Be6 Kxc8
2. Rh8#
#3. 1. Rf5 Qg8
2. Rh5 Qh7
3. Rhxh7#
#4 1. Rb4 Nd1
2. Ke5 Nc3
3. Bb2#
#5 1. Nxa3 Kd2
2. Qc2 Ke1
3. Nc3 Kf1
4. Qe2#
Hello Everyone, 10 solutions were submitted so far. You still have time to win the contest! Submit your solutions. 🙂
Position 1:
White should play 1. Qc1 if 1… g3 is played, then 2. Qxc8# is mate. If 1… d2 is played, 2.Qc3 is the correct response for white. Here, black is forced to play 2… g3 (his king can’t move, and the bishop can not block), which is then followed by 3. Qxc8#. If Black moves his bishop anywhere on the a6-c8 diagonal, white follows up with 2. Qf4. Black can not stop white from playing Qh2#. If 1… Bd7, White plays 2.Qc7, followed by either 3. Qh2#, or if 2… g3 is played, 3. Qxd7#. If black plays 1… Bh6, white follows up with 2. Qe3+, forcing 2… g3, which is followed up by 3. Qxe6. If black plays 1… Bf5, white plays 2. Qf4. This is either followed up by 3. Qh2#, or if black plays 2… g3, Qxf5#.
Continued in next comment
Continued from previous comment (symbol restrictions)
Position 2:
White should play 1. Rb3. If 1… Rxc8, the continuation is 2. Rd3, then Rd8#. Black’s only other possible move choice is a1=whatever. This is followed up with 2. Ba5+. Black’s only move is 2… Kxc8, which leads to Bh3#.
Position 3:
White’s correct move is 1.Ra2 If black plays 1… Qb7, then 1.Rh2 is mate. If black plays anything else, then the correct move is 2. Ra8+, The queen is now forced to block, which white will the capture with the Rook (wherever it goes), which will be mate.
Position 4:
White’s correct move is 1. Rc4. If Black plays 1… Nxc4, then white should play 2. Kc3, followed by Bxb2#. If black plays 1… Nd1 or 1… Na4, then White should play 2. Rb4, followed by 3. B(x)b2#. If 1… Nd3, the correct move for white is 2. Ba3 followed by 3. Rc1#.
Position 5 continued in next comment
Continued from previous comment (Symbol restrictions)
Position 5:
The correct move for white here is 1. Nc3. If black plays 1… Bc1, white plays 2. Qd4+. Black is forced to play 2… Kd2, which is followed by Qe2#. If black instead plays 1… Bb2, White plays 2.Qd4+, forcing black to play 2… Kc2, which is followed by Qd1#. If black plays 1… Bb4, white should play 2. Qd1, forcing black to play 2… Ke3, which is followed up with Qe2#. If black moves his bishop elsewhere, White should play 2. Qa2 Now, black can not stop 3. Qe2#.
If black plays 1… Kd2, White should play 2. Qd2+, forcing 2… Ke3, which is followed up by 3. Qe3#.
Just a reminder that I have 3 comment posts of notes, due to the symbol limit, and the fact that I had more lines to go through but no space. (I saw no rule against this, so I am assuming that this is allowed. If it is not, please let me know ASAP and I will try to condense it into one comment).
1.Qc1-Bb7 Qc7-d2 Qh2# Qc1. attack the bishop taken the C8 diagonal to h3. Qc7 double attack bishop and treating mate. pushing g4-g3 mate in d7.
2.Rb3-Kxc8 Rd3 a1=Q Rd8#.Rb3 preparing for discovery check from the promotion a2,forcing the king to take the knight.Rd3 tempo for a mate.
3.Rf6-Qg8 Rh6+ Qh7+ Rh6xh7#.Bishop occuping the a2-g8 diagonal, the king on the edge of the board,rook on the 7th rank.limit the square for the king, another rook to reinforce the checkmate pattern Rf6. the only defense is Qg8 but can’t stop the checkmate.
4.Rc4-Nd1 Ba3-Nb2 Rc1#.Rc4 can’t be taken by knight because the king forward to Kc3.Preventing the c3 knight goes to d1. then starting maneuvring the dark bishop to a3. no moves for black. outpost the lonely knight to move along.
5.Qd4+-Ke2 Ndc3+ Kf1 Qg1#/ Qd4+ Kc2 Ne3+ Kc1 Qd1+ Kb2 Nc4+ Ka2 Nc3#.Two tricky knight and Queen combination a kind of hard thing to do, but proper move order lead to checkmate pattern. 😉
position 5 Nc3 Kd2 Qd1+ Ke3 Qe2# if Ke3 Qd4+ Kf3 Qf4#
position 4 Rc4 Na4 RB4 NB2 Bb2#
POSITION 3 Rf2a2 Qf8 Ra2h2 Qh6 RXh6#
position3 Rf2a2 Qf8 Ra2h2+ Qh6 Rxh6#
position 2 Rb3 Kxc8 Rd3 a1=q Rd8# if a1=q Ba5+ Kxc8 Bh3#
position 2 Rb3 a1=Q Ba5+ Kxc8 Bh3#
position-1:sol 1:1.Qf8! Be6(1. … Bd7) 2.Qd6! Bf4(2. … g3 3.Qxe6#) 3.Qh2#(if 1. … Bf5 2.Qxf5 d2[2. … Kg3 3.Qf2+ Kh3 4.Qh2#] 3.Qd3+ g3forced 4.Qf5# )
position-1:sol 2:1.Qf8! Bb7(1. … Ba6) 2.Qd6! g3 3.Qe6# if(1. … d2 2.Qf1+ Kg3 3.Qf2+ Kh3 4.Qh2#)
position-2:1.Rb3! Kxc8(1. … a8=Q 2.Ba5+ Kxc8forced 3.Bh3#)2.Rd3! Kb8 (2. … a8=Q) 3.Rd8#
position-3:sol 1:1.Be6 b3(1… Qa8 2. Rh7#) 2.Rf3 Qh2 3. Rf8#(if2. …Qg8 3.Rh3+ Qh7forced 4.R3h7#)
position-4:1.Kc3! Nxa4+(if 1. … Nd1+ 2.Kb3) 2.Kc2 Nc3 3.Bb2#(if 1. … Nc4 2.Bd3 Nb2 3.Bxb2# )
position-5:1.Ndc3 Kd2 (if 1. … Ke3 2. Qd4+ Kf3forced 3.Qf4#)2.Qd1+ Ke3forced 3.Qe2#
(if1. … Bb4 2.Qd1+ Kc4 3.Qd5#)
(if1. … Bc52.Qe4+ Kd2 3.Qe2+ Kc1 4.Qd1+ Kb2 5.Qb1# )
POSITION 1 Qc1 d2 Qc3+ g3 Qxc8#
Solution 1
1-Qc1 Bf5 Qf4 g3 Qxf5#
2-Qc1 Bf5 Qf4 Be6 Qh2#
Solution 2
1-Rb3 a1Q Ba5+ Kxc8 Bh3#
2-Rb3 Kxc8 Rd4 a1Q Rd8#
Solution 3
1-Ra2 Qe8 Rh2+ Qh5 Rxh5#
2-Ra2 Qg8 Rh2+ Qh7 Rxh7#
Solution 4
1-Rc4 Nxc4 Kc3 Nb2 Bxb2#
2-Rc4 Nd3 Ba3 Kb1 Rc1#
3-Rc4 Na4 Rb4 Nc3 Bb2#
4-Rc4 Na4 Rb4 Nb2 Bxb2#
Solution 5
1-Ndc3 Kd2 Qd1+ Ke3 Qe2#
2-Ndc3 Ke3 Qd4+ Kf3 Qf4#
3-Ndc3 Bc5 Qa2 Bf8 Qe2#
great tactic positions
Hi Yuri,
sorry, I cannot add my full comments, even if they are under 1000 symbols. Here are only the main lines. The other ones I will send you via email (draculix@gmx.de)Hope it’s ok.
Yours truly
Felix
1st
1.Qc1! Bf5(Bb7/Ba6)
2. Qf4 Bg6
3. Qh2#
2nd
1.Rb3! is the key move (threatening Ba5+ Kxc8 Lh3#) Kxc8
2.Rd3! a1=Q
3. Rd8#
3rd
1.Ra2! is key movw
Queen has to cover the mate at h2 but at the same time also the backrank.
…. Qd6
2. Ra8+ Qd8
3. Rxd8#
4th
1. Rc4! is key move
Black is again in zugzwang
….Nxc4
2. Kc3! , zugzwang, the knight cannot cover b2 after a move Ne5(Nd2, Ne3, Na3, Nb6)
3. Bb2#
5th
1. Ndc3!Bc5
2. Qa2! Be7
3. Qe2#
Best regards
Shipping solving problems.
[b]PROBLEM # 1.[/b]
I). Qc1 d2. 2. Qc3+ g2 3. Qxc8#
II).Qc1 Bf5. 2. Qf4 g3 3. Qxf5#
III).Qc1 Af5 2. Qf4 d2 3. Qh2#
[b]PROBLEM # 2.[/b]
I). 1.Rb3 a1=Q 2.Ba5+ Kxc8 3.Bh3#
[b][b]PROBLEM # 3.[/b][/b]
I). 1.Ra2 Qg3 2.Ra8+ Qb8 3.Qxb8#
II). 1.Ra2 Qf4 2.Ra8+ Qb8 3. Rxb8#
III).1.Ra2 Qb5 2. Rh2+ Qh5 3. Rxh5#
[b]PROBLEM # 4[/b]
I). 1.Rc4 Nd3 2.Ba3 Kb1 3.Rc1#
II). 1.Rc4 Nd1 2.Rb4 Nc3 3.Bb2#
III). 1.Rc4 Na4 2.Rb4 Nb2 3.Bxb2#
IV). 1.Rc4 Nxc4 2.Kc3 Nd6 3.Bb2#
[b]PROBLEM #5.[/b]
I) 1.Ndc3 Bb2 2.Qd4+ Kc2 3.Qd1#
II) 1.Ndc3 Bc5 2. Qa2 Be7 3.Qe2#
III) 1.Ndc3 Bd6 2. Qa2 Bxg3 3.Qe2#
IV) 1. Ndc3 Bc1 2. Qe4+ Kd2 3. Qe2#
Thanks.
Answers:
#1 Answer:
Qc1
…d2 2.Qc3+ g3 3. QxB mate
…Kg3? 2.Qe3+ mate
…Bb7 2.Qe3+ g6 3.Qe6+mate (or 2.Qf4 g6 3. Qf5+mate)
….Bf5 2. Qf4
…Be6 2.Qe3+
…Bd7 2.Qc7
#2Answer
Rb3
….a1Q 2.Bh5+ KxN 3. Bh3mate
…..KxN 2. Rd3 Kb8/a1Q 3.Rd1mate
#3 Answer
Rf2f6 (threatening f6h6 mate in next move)
….Qg8 (…Qh2/Qf8? 2.Rf6f8+mate) 2.Rfh6+ Qh7 RxQmate
#4 Answer
Kc3
….NxR+ 2.Kc2 Nc3/Nc5/Nb6/Nb2 3.Bb2+mate
….Nd1+ 2. Kb3 Nc3/Nb2/Nf2/Ne3 3.Bb2+mate
….Nd3 2.Rb4 NxR/Nc5/Ne1/Nf2 3.Bb2+mate
….Nc4 2.Rb4 Knight moves anywhere 3.Bb2+mate
#5 Answer
Ndc3
…..Bb2 2.Qd4+ Kc2 3. Qd1+mate
…..Bc1 2.Qe4+ Kd2 3.Qe2+mate
…..B4 2.Qd1+ Ke3 (2…Kc4 3.Qd5+mate) 3. Qe2+mate
Position #1
1. Qc1 d2
[1. .. Bd7 2. Qc7 Bf5 3. Qh2#
1. .. Be6 2. Qe3+ g3 3. Qxe6#
1. .. Kg3 2. Qe3#]
2. Qc3+ g3 3. Qxc8#
Position #2
1. Rb3 Kxc8
[1. .. a1=Q 2. Ba5+ Kxc8 3. Bh3#]
2. Rd3 Kb8
[2. .. a1=Q 3.Rd8#]
3. Rd8#
Position #3
1. Ra2 Qg3
[1. .. Qg8 2. Rh2+ Qh7+ 3. Rhxh7#]
2. Ra8+ Qg8 3. Rxg8#
Position #4
1. Rc4 Nd3
[1. .. Nd1 2. Rb4 Nc3 3. Bb2#
1. .. Na4 2. Rb4 Nc3 3. Bb2#
1. .. Nxc4 2. Kc3 Nd2 3. Bb2#]
2. Ba3 Nb2 3. Rc1#
Position #5
1. Ndc3 Ke3
[1. .. Bc5 2. Qa2 Ke3 3. Qe2#]
2. Qd1 Kf2 3. Qg1#
#1. 1. Qe3#
#2. 1. Be6 Kxc8
2. Rh8#
#3. 1. Rf5 Qg8
2. Rh5 Qh7
3. Rhxh7#
#4 1. Rb4 Nd1
2. Ke5 Nc3
3. Bb2#
#5 1. Nf4 Kd2
2. Nxa3 Kc1
3. Qc2#
All solved
1.Qc6 2.Rc3 if Kxc8 then Bc6 3.Rf6 4.Rb4 5.Nxa3,w/Qe4
Answers Erwin Kok
Task 1
1.Dc1 g3 [1…Kg3 2.De3#; 1…d2 2.Dc3+ g3 3.Dxc8#; 1…Lb7 2.Dc7 g3 3.Dd7#]
2.Dxc8#
Task 2
1.Tb3 Kxc8 [1…a1D 2.La5+ Kxc8 3.Lh3#]
2.Td3 Kb8 [2…a1D 3.Td8#]
3.Td8#
Task 3
1.Tf6 Dh2 [1…Dg8 2.Th6+ Dh7+ 3.Texh7#; 1…Dd6 2.Tf8#; 1…Df4]
2.Tf8#
Task 4
1.Tc4 Pxc4 [1…Pa4 2.Tb4 Pb2 3.Lxb2#; 1…Pd3 2.La3 Pb2 3.Tc1#; 1…Pd1 2.Tb4 Pb2 3.Lxb2#]
2.Kc3 Pa3 3.Lb2#
Task 5
1. Ndc3 Ke3 (1… Kd2 2. Qd1+ Ke3 3. Qe2#) (1… Bc5 2. Qa2 Bg1 3. Qe2#) (1…
Bd6 2. Qa2 Bxg3 3. Qe2#) 2. Qd4+ Kf3 3. Qf4#
Position # 1
1)Qc1
1)…Ba6 2)Qe3+ g3 3)Qe6#
1)…Bb7 2)Qc7
2)…bishop move 3)Qh2#
2)…g3 3)Qd7#
1)…Bd7 2)Qc7
2)…g3 3)Qd7#
2)…B move 3)Qh2#
2)…d2 3)Qh2#
1)…Be6 2)Qe3+ g3 3)Qe6#
1)…Bf5 2)Qf4
2)…g3 3)Qf5#
2)…B move 3)Qh2#
2)…d2 3)Qh2#
1)…d2 2)Qc3+ g3 3)Qc8#
1)…Kg3 2)Qe3#
Position # 2
1)Rb3
1)…Kc8 2)Rd3 any move 3)Rd8#
1)…a1Q (or promote to any other piece) 2)Ba5+ Kc8 3)Bh3#
Position # 3
1)Ra2
1)…if Q moves on the 8th rank 2)Rh2+ Q interposes 3)RxQ#
1)…if Q moves on b8-h2 diagonal 2)Ra8 Qb8 3)Rb8#
osition # 4
1)Rc4
1)…Nc4 2)Kc3 any move 3)Bb2#
1)…Na4 2)Rb4 any move 3)Bb2#
1)…Nd3 2)Kc3 any move 3)Bb2#
1)…Nd1 2)Rb4 any move 3)Bb2#
Position # 5
1)Ndc3
1)…Kd2 2)Qd1+ Ke3 3)Qe2#
1)…Bc1 2)Qe4+ Kd2 3)Qe2#
1)…Bb2 2)Qd4+ Kc2 3)Qd1#
1)…Bb4 2)Qd1+
2)…Kc4 3)Qd5#
2)…Ke3 3)Qe2#
1)…Bc5/d6/e7/f8 2)Qa2 any move 3)Qe2#
Here’s my answers for the 5 puzzles.
I will breakdown the solutions in 2-3 parts as the system is telling that my comments are too long and cannot accept.
P1
1.Qc1 g3 2.Qxc8#
1..Kg3 2.Qe3#
1..d2 2.Qc3+ g3 3.Qxc8#
1..Bd7 2.Qc7 g3 3.Qxd7#
1..Be6 2.Qe3+ g3 3.Qxe6#
1..Bf5 2.Qf4 g3 3.Qxf5#
1..Bb7 2.Qc7 (2Qf4 g3 3Qf5#) g3 3.Qxd7#
1..Ba6 2.Qe3+ g3 3.Qe6#
P2
1.Rb3 a1=Q 2.Ba5+ Kxc8 3.Bh3#
1.Rb3 a1=R 2.Ba5+ Kxc8 3.Bh3#
1.Rb3 a1=B 2.Ba5+ Kxc8 3.Bh3#
1.Rb3 a1=N 2.Rc3 Nb3(or2..Nc2)3.Ba7#
1.Rb3 Kxc8 2.Rd3 a1=Q(or 2..Kb8)3.Rd8#
P3-P5 next part..
Answer for P3
1.Ra2 Qa7 2.Rh2#
1..Qb7 2.Rh2#
1..Qh2 2.Rh2#
1..Qa8 2.Rxa8#
1..Qc7 2.Ra8+ Qc8 3.Rxc8#
1..Qd6 2.Ra8+ Qd8 3.Rxd8#
1..Qe5 2.Ra8+ Qb8 3.Rxb8#
1..Qf4 2.Ra8+ Qf8 3.Rxf8#
1..Qg3 2.Ra8+ Qg8 3.Rxg8#
1..Qc8 2.Rh2+ Qh3 3.Rxh3#
1..Qd8 2.Rh2+#
1..Qe8 2.Rh2+ Qh5 3.Rxh5#
1..Qf8 2.Rh2+ Qh6 3.Rxh6#
1..Qg8 2.Rh2+ Qh7 3.Rxh7#
Pos4
1.Rc4 Nxc4 2.Kc3 the 3.Bb2#
1..Nd3 2.Ba3 Kb1 (2…Nb2 3.Rc1#) 3.Rc1#
1..Nd1 2.Rb4 then 3.Bb2#
1..Na4 2.Rb4 then 3.Bb2#
Pos5
1.Ndc3 Kd2 2.Qd1+ Ke3 3.Qe2#
1..Ke3 2.Qd4+ Kf3 3.Qf4#
1..Bc5 2.Qa2 Be3(or2…Ke3 3Qe2#)3.Qe2#
1..Bc1 2.Qe4+ Kd2 3.Qe2#
1..Bb2 2.Qd4+ Kc2 3.Qd1#
1..Bb4 2.Qd1+ Kc4(2…Ke3 3Qe2#)3.Qd5#
1..Bd6 2.Qa2 Bxg3 3.Qe2#
1..Be7 2.Qa2 Bg5(any move)3.Qe2#
1..Bf8 2.Qa2 Bh6(any move)3.Qe2#
Thanks,
Dear Yury,
Nice contest for TheChessWorld!
Though it took me (2+ hours) more than I thought sending the solutions to the interesting puzzles.
The system didn’t accept longer comments, but the variation details are necessary for completion. Finally, decided to send answers in two parts and hope you’ll able to get it. Keep us posted!
Thanks,
Arjoe
Pos#1. 1.Qc1 d2 2.Qc3+ g3 3.Qxc8#
1…Bf5 or Bb7 2.Qf4 g3 (or any move 3.Qh2#) 3. Qf5#or Qxf5#
1…Be6 or Ba6 2.Qe3+ g3 (or any move 3.Qh2#) 3.Qe6# or Qxe6#
1…Bd7 or Bb7 2.Qc7 g3 (or any move 3.Qh2#) 3.Qd7# or Qxd7#
Pos#2. 1.Rb3 Kxc8 2.Rd3 any move 3. Rd8#
1…a1=N 2. Rc3 any move 3.Ba7#
1…a1=any pieces except N 2.Ba5+ Kxc8 3.Bh3#
Pos#3. 1.Ra2 any of Qg3, Qf4, Qe5, Qd6, Qc7 2.Ra8+ any move 3.RxQ#
1…any of Qb5, Qe8, 2.Rh2+ Qh5 3.Rxh5#
1…any of Qb6, Qf8 2. Rh2+ Qh6 3.Rxh6#
1…any of Qd8, Qa7, Qb7, 2.Rh2#
1…Qg8 2.Rh2+ Qh7 3.Re or Rhxh7#
Pos#4. 1.Rc4 Nd3 2.Ba3 any move 3.Rc1# or Rxc1# if 2…Nc1
1…Nd1 or Na4 2.Rb4 any move 3. Bb2# or Bxb2# if 2…Nb2
1…Nxc4 2.Kc3 any move 3.Bb2# or Bxb2# if 2…Nb2
Pos#5. 1.Ndc3 Kd2 2.Qd1+ Ke3 3.Qe2#
1…Ke3 2.Qd4+ Kf3 3.Qf4#
1…Bc1 2.Qe4+ Kd2 3.Qe2#
1…Bb2 2.Qd4+ Kc2 3.Qd1#
1…any of Bc5, Bd6, Be7,Bf8 2.Qa2 any move 3.Qe2#
Consider this as my selection please. Drop the previous 2 solutions that I submitted please.
Pos1. 1. Qc1 Bb7
2. Qc7 g3
3. Qd7# 1-0
Pos2. 1. Be6 Kxc8
2. Rh8# 1-0
Pos3. 1. Rf5 Qg8
2. Rh5 Qh7
3. Rhxh7# 1-0
Pos4 1. Rb4 Nd1
2. Ke5 Nc3
3. Bb2# 1-0
Pos5 1. Nf4 Kd2
2. Nxa3 Kc1
3. Qc2# 1-0
All solved
1) 1. Qc1 Kg3 2. Qe3++
Pg3 2. QxBc8++
Pd2 2. Qc3+ Pg3 3. QxBc8++
Bd7 2. Qc7 … 3. Qh1++
Be6 2. Qe3 Pg3 3. QxBe6++
Bf5 2. Qf4 … 3. Qh1++
2) 1. Rb3 a1 2. Ba5+ Kxc8 3. Bh3++
Kxc8 2. Rd3 a1 3. Rd8++
Kb8 3. Rd8++
3)If one kill the queen without a cheque, the black dont have a move.
1. Rg2 Qf8 2. Rh2+ Qh6 3. Rxh6++
4) 1. Kc3 Nxa4+ 2. Kc2 Nc2 3. Bxb2++
N…3. Bb2++
5) Kdc3 B… 2. Qe4+ Kd2 3. E2++
Kd2 2. Qd1+ Ke3 3. Q2++
Ke3 2. Qe4+ Kd2 3. Qe2++
Kf2 3. Qe2++
Problem #1: 1. Qc1. If 1… g3, then Qxc8#. If 1… Bb7 2. Qf4 2… g3 ( 2… d2 3. Qh2#, 2… Ba6 3. Qh2#, 2… Ba8 3. Qh2#, 2… Bc8 3. Qh2#, 2… Bc6 3. Qh2#, 2… Bd5 3. Qh2#, 2… Be4 3. Qh2#, 2… Bf3 3. Qh2#, 2… Bg2 3. Qh2#, 2… Bh1, 3. Qh2#) 3. Qf5#. If 1… Bd7, 2. Qc7 2… d2 (2… g3 3. Qxd7#, 2… Bc8 3. Qh2#, 2… Be8 3. Qh2#, 2… Bc6 3. Qh2#, 2… Bb5 3. Qh2#, 2… Ba4 3. Qh2#, 2… Be6, 3. Qh2#, 2… Bf5 3. Qh2#) Qh2#. If 1… d2, 2. Qc3+ 2… g3 3. Qxc8#. If 1… Ba6 2. Qe3+ 2… g3 3. Qe6#. If 1… Be6 2. Qe3+ 2… g3 3. Qxe6#. If 1… Bf5 2. Qf4 2… g3 (2… d2 3. Qh2#, 2… Be6 3. Qh2#, 2… Bd7 3. Qh2#, 2… Bc8 3. Qh2#, 2… Be4 3. Qh2#, 2… Bg6 3. Qh2#, 2… Bh7 3. Qh2#) 3. Qf4#.
Problem #2: 1. Rb3. If 1… a1=N 2. Rc3 2… Nb3 (2… Nc2 3. Ba7#) 3. Ba7#. If 1… a1=Q (or 1… a1=B, 1… a1=R) 2. Ba5+ 2… Kxc8 3. Bh3#. If 1… Kxc8 2. Rd3 2… a1=Q (2… a1=N, 2… a1=B, and 2…a1=R, and 2… Kb8 lose to 3. Rd8#) 3. Rd8#.
Problem #3: 1. Ra2. If 1… Qf4 2. Ra8+ 2… Qb8 (2… Qf8 3. Rxf8#) 3. Rxb8#. If 1… Qg3, 2. Ra8+ 2… Qg8 (2… Qb8 3. Rxb8#) 3. Rxg8#. If 1… Qa7 2. Rh2#. If 1… Qb5 2. Rh2+ 2… Qh5 3. Rxh5#. If 1… Qb6 2. Ra8+ 2… Qd8 (2… Qb8 3. Rxb8#) 3. Rxd8#. If 1… Qh2, 2. Rxh2#. If 1… Qb7 2. Rh2#. If 1… Qg8, 2. Rh2+ 2… Qh7 3. R1xh7# or 3. Rexh7#. If 1… Qf8, 2. Rh2+ 2… Qh6 3. Rxh6#. If 1… Qa8 2. Rh2# or 2. Rxa8#. If 1… Qe5 2. Ra8+ 2… Qb8 3. Rxb8#. If 1… Qd6 2. Ra8+ 2… Qb8 (2… Qd8 3. Rxd8#) 3. Rxd8#. If 1… Qc7 2. Ra8+ 2… Qb8 (2… Qc8 3. Rxc8#, 2… Qd8 3. Rxd8#) 3. Rxb8#. If 1… Qe8 2. Rh2+ 2… Qh5 3. Rxh5#. If 1… Qd8 2. Rh2#. If 1… Qc8 2. Rh2+ 2… Qh3 3. Rxh3#. If 1… Qf8 2. Rh2+ 2… Qh6 3. Rxh6#.
Problem #4: 1. Kc3. If 1… Nxa4 2. Kc2 2.. Nc3 (2… Nb6 3. Bb2#, 2… Nc5 3. Bb2#, 2… Nb2 3. Bb2#) 3. Bb2#. If 1… Nd3 2. Ba3 2… Nc1 (2… Nb4 3. Bb2#, 2… Nc5 3. Bb2#, 2… Ne5 3. Bb2#, 2… Nf4 3. Bb2#, 2… Nf2 3. Bb2#, 2… Ne1 3. Bb2#, 2… Nb2 3. Bxb2#) 3. Bb2#. If 1… Nd1# 2. Kb3 2… Nc3 (2… Nb2 3. Bxb2#, 2… Ne3 3. Bxb2#, 2…Nf2 3. Bb2#) Bb2#. If 1… Nc4 2. Ra6 (or 2. Ra7 or 2. Ra8 or 2. Bf5 or 2. Bg6 or 2. Bh7 or 2. Bd3 or 2. Bc2, all followed by a knight move and 3. Bb2# or 3. Bxb2#) 2… Na5 (2… Na3 Bb2#, 2… Nd2 3. Bb2#, 2… Ne3 3. Bb2#, 2… Ne5 3. Bb2#, 2… Nd6 3. Bb2#, 2… Nb6 3. Bb2#, 2… Nb2 3. Bxb2#) 3. Bb2#.
#5:1. Ndc3.If 1…Ke3 2. Qd4+ 2… Kf3 3. Qf4#. If 1… Kd2 2. Qd1+ 2… Ke3 3. Qe2#. If 1… Bc1 2. Qe4+ 2… Kd2 3. Qe2#. If 1…Bb2 2. Qd4+ 2…Kc2 3. Qd1#. If 1…Bb4 2. Qd1+ 2… Kc4 (2…Ke3 3. Qe2#) 3. Qd5#. If 1… Bc5 2. Qa2 2…Ke3 (2…Ba3 3. Qe2#, 2… Bb4 3. Qe2#, 2… Bd4 3. Qe2#, 2…Be3 3…Qe2#, 2…Bf2 3…Qe2#, 2…Bg1 3…Qe2#, 2…Bb6 3. Qe2#, 2…Ba7 3. Qe2#, 2…Bd6 3. Qe2#, 2…Be7 3. Qe2#, 2…Bf8 3. Qe2#) 3. Qe2#. If 1…Bd6 2. Qa2 2… Bxg3 (2… Ba3 3. Qe2#, 2…Ke3 3. Qe2#, 2…Bb4 3. Qe2#, 2…Be7 3. Qe2#, Bf8 3. Qe2#, 2…Bb8 3. Qe2#, 2…Bc7 3. Qe2#, 2… Be5 3. Qe2#, 2… Bc5 3. Qe2#, 2…Bf4 3. Qe2#) 3. Qe2#. If 1…Be7 2. Qa2 2…Bf8 (2…Ke3, 3. Qe2#, 2…Bb4 3. Qe2#, 2…Bc5 3. Qe2#, 2…Bd6 3. Qe2#, 2…Ba3 3… Qe2#, 2…Bd8 3. Qe2#, 2…Bf6 3. Qe2#, 2…Bg5 3. Qe2#, 2…Bh4 3. Qe2#) 3. Qe2#. If 1…Bf8 2. Qa2 2… Bg7 (2…Ke3 3. Qe2#, 2…Bh6 3. Qe2#, Bb4 3. Qe2#, 2…Bc5 3. Qe2#, 2…Bd6 3. Qe2#, 2…Ba3 3…Qe2#, 2…Be7 3. Qe2#) 3. Qe2#.
Thanks to all who participated in the contest!
The solutions are now posted and the winners announced.