End This Game As Quick As Possible!

Logic Level 2

Black to move and mate in 2.

Which piece should Black move first?

Pawn on a7 Pawn on f7 Pawn on g5 Pawn on h5 Bishop on e3 Rook on d2 King on h7

Omar Sehlouli by Omar Sehlouli , 21, Morocco

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5 solutions

  1. .... g4+
  2. Kh4 Rxh2#
4 Helpful 0 Interesting 0 Brilliant 0 Confused

Two errors on your chess move recording. Error 1: It's g4+ since you put the king in check. Error 2: It's Rxh2# since the h2 pawn must be killed. :P

Sharky Kesa - 5 years ago

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You're totally right!

Omar Sehlouli - 5 years ago

That's what happens when you solve problems when sleepy. :P Thanks

A Former Brilliant Member - 5 years ago

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...sleepy?

Austin Li - 10 months, 3 weeks ago

Get 3 downvotes because some people are trolls. :(

Sharky Kesa - 4 years, 5 months ago
Omar Sehlouli
May 25, 2016
  1. ...... g4+
  2. Kh4. Rxh2# (thanks Sharky )

hence the first move is pawn on g5 to g4

3 Helpful 0 Interesting 0 Brilliant 0 Confused

Moderator note:

For completeness, we should explain why there are no other "mate in 2" approaches. This is often trickier and involves some kind of exhaustive search.

But after it moves to h4 the only way to put it in check again is to move the black bishop to g4. The bishop would have nothing protecting it so the white king could take it. I think 3 moves makes the most sense. Maybe the black King could be brought to h6 behind the rightmost pawn after the pawn is moved down to check the king. Then on the third move, put the white King in checkmate with the bishop

Kyle Al-Rawi - 4 years, 11 months ago

The creator of the puzzle didn't mention the white player doesn't get a turn. After the pawn would be moved to g4, the black rook would be taken down

Dawid Piotrowicz - 5 years ago

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g4 comes with a check, so the rook can't be taken down

Tanuj Chandolia - 5 years ago

No because the King would still be in check if the rook was taken. White must move the king (to H4) to get out of check.

Trah Rown - 5 years ago

By the way , the king can't even take the pawn , so the king was forced to move .

Note that the king can't move up because of the rook , so the only move possible to the king himself is Kh4

Omar Sehlouli - 5 years ago
Zakir Husain
May 19, 2020

Moving pawn from G5 to G4, giving a check

Now king can't take the pawn nor it can move to G2 because a rook is there

Therefore king must move to H4

After that rook takes the pawn at H2 giving a checkmate

0 Helpful 0 Interesting 0 Brilliant 0 Confused

This tactic of chess was way easy:

  1. .......g4+
  2. Kh4 (the only move) ..........Rxh2#
0 Helpful 0 Interesting 0 Brilliant 0 Confused
Ashish Menon
Jun 2, 2016

Black pawn moves from g5 to g4. Then the white king has to forcefully move to h4. Then black rook cuts the pawn at h2. Check mate! So, the answer is Pawn on g5 \color{#69047E}{\boxed{\text{Pawn on g5}}} .

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Wouldn't white bishop take rook after pawn to g4?

Chifai Ng - 4 years, 6 months ago

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