Not Your Normal Mate in 3 Puzzle

2q1b3/2prrp1N/R4p1P/3P1k1K/3Qp2P/8/4N1PP/1B1n4 w - - 0 1 White to move and force self-mate in 3.

This is a different kind of puzzle than you normally see on Susan's site, though the idea is an old one in chess compositions. The goal here is to find white's moves that force black to mate in 3. Some people have difficulty understanding the concept, but it is good exercise for your brain. Basically, white uses checks that black must respond to, the end result of which is that white is mated by black by the forced reply.

Comments (17)
No. 1-17
Alena
Alena

1.Nf8 Re5
2.Qf2+ Nxf2
3.Rxf6+ Kxf6#

Yancey_Ward
Yancey_Ward

Editor

Crocodile, no even after 1. ..Re5, white can still force self-mate in 3, but the second move isn't 2.Ng3- it is another check at move 2.

Crocodile3008
Crocodile3008

After 1.Nf8 Te5! 2. Ng3+ Kf4+!! ..... there is no mate in 3 moves

Stapenhorst
Stapenhorst

aaaahhhh! thx
Interesting that now it looks easy kk

Alena
Alena

1.Nf8! any move
2.Ng3+ Kf4
3.Ng6+ fxg6#

Bruno12
Bruno12

XadrezExplorer

Bruno12
Bruno12

I found a solution but it's not in 3...B × e4+ R × e4 Ng3+ Kf4 Rf1+ Nf2 Ne2+ Kf5 g4+ R × g4 Qd3+ Re4 Ng3+ Ke5 Re6+ f × e6#

Yancey_Ward
Yancey_Ward

Editor

The first move is not a check- but is threatens 2.Ng3+.

Eggman61
Eggman61

Last try: 1 Qxe4+ Rxe4 2 g4+ Ke5 3 Re6+ fxe6#

Eggman61
Eggman61

Actually, black isn’t forced to play Kxe5 on his 2nd move

Eggman61
Eggman61

I guess my solution is also wrong, because black isn’t forced to play Rxe4

Eggman61
Eggman61

How about 1 Bxe4+ .. Rxe4. 2 Qe5+ .. Kxe5. 3 Re6+.. fxe6#

Stapenhorst
Stapenhorst

4..fxe6+ 5. Kg4 is not even a mate :(

Stapenhorst
Stapenhorst

I tried for a long time, and still nothing. 1. Qxe4+ Rxe4 2. g4+ Ke5 3. Re6+
doe not work because of 3...Kxd5.
I also found 1.Bxe4+ Rxe4 2.g4+ Rxg4 3.Qxg4+ Ke5 4. Qe6+ fxe6++ , but it is on 4 moves.
Can someone please post a hint? I'm curious

Yancey_Ward
Yancey_Ward

Editor

Also, Alena, just as a note- not all of white's moves have to be checks in self-mate- just like normal mating compositions, the hardest self-mates will have quiet moves at the beginning or elsewhere in the line.

Yancey_Ward
Yancey_Ward

Editor

No, Alena- afer 2.Ng3+, black can extend it by playing 2. ....Kf4. You are wrong right from the start- there is one unique solution at move 1 for white that forces self-mate in 3.

Alena
Alena

1.Qxe4+ Rxe4
2.Ng3+ Ke5
3.Re6+ fxe6#



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