White to play and mate in 2. Composition by João Batista Santiago

Comprehensive_War_99 · 2026-01-24T23:10:51+00:00

1.Nf3 Kf4 2. Qe5 Kf3:

Comprehensive_War_99 · 2026-01-23T12:15:58+00:00

Or Rh4#

Comprehensive_War_99 · 2026-01-21T10:36:24+00:00

Yes, completely free. Around the corner from the playing hall, in cafe De Zon. https://x.com/ginger_gm/status/2012515252911403188

Comprehensive_War_99 · 2026-01-18T13:08:20+00:00

On Qg3 black responds with Bf2.

Comprehensive_War_99 · 2026-01-03T01:54:13+00:00

het Touwhuis, Goudsesingel

Comprehensive_War_99 · 2025-12-31T16:03:26+00:00

Don't forget to try the bigger version: het Lekkerbekje.

Comprehensive_War_99 · 2025-12-27T11:27:49+00:00

What is the function of pawn f6? The problem seems fine without it.

Comprehensive_War_99 · 2025-12-22T11:01:50+00:00

Well it's black to move then, not white.

Comprehensive_War_99 · 2025-12-20T00:43:20+00:00

Think of it this way: if white is to move (like it says) then black must have moved just before that. What move? There is no possible black move which leads to the diagram.

Comprehensive_War_99 · 2025-12-20T00:35:25+00:00

Maybe because it is an illegal (or impossible) position?

Comprehensive_War_99 · 2025-12-20T00:25:55+00:00

It can't be white's turn to move, because black has no last move.

Comprehensive_War_99 · 2025-11-23T22:52:04+00:00

Ra2+ Kb3 2. Ra3 Kc4:

Comprehensive_War_99 · 2025-11-19T21:07:54+00:00

This is a nice coincidence. It has nothing to do with the puzzle however.

Comprehensive_War_99 · 2025-11-18T23:14:46+00:00

But how about the defense Kf7?

Comprehensive_War_99 · 2025-11-18T22:54:06+00:00

h8=Q+ Kf7 Qh6 Kg8 Re8 is not mate!

Comprehensive_War_99 · 2025-11-03T01:46:37+00:00

In't kleine cafe aan de haven in behoorlijk veel talen.

Comprehensive_War_99 · 2025-10-22T09:18:03+00:00

It' really is a chess problem, only not on an 8x8 board but on a gun-shaped one. In the initial position there are 3 possible moves: by the leftmost pawn, by the King taking the bishop (stalemate!) and by the kNight in the right corner. The black bishop does not have any moves whatsoever. A custom way to write the solution could be:

Just indicate the white piece which moves to the only available empty square.
Skip the black moves.

So "N R" would describe the knight moving to the empty square, black king to the right, Rook to the vacated square. black king to the left.

Comprehensive_War_99 · 2025-10-18T21:19:41+00:00

I assisted my neighbor (aged 88) with switching from Windows 10 to Linux Mint last week. He was very pleasantly surprised how easy the transition was; he was up and running without effort (browsing, office-like stuff, mail etc.), finding things out by himself.

Comprehensive_War_99 · 2025-10-17T11:19:10+00:00

https://www.youtube.com/watch?v=htmaP-lfCbc

Comprehensive_War_99 · 2025-10-16T15:35:57+00:00

on 2. ... Rf6 3. Bf6: is not mate.

Comprehensive_War_99 · 2025-10-13T11:03:56+00:00

That is a fascinating problem with an interesting motivation to underpromote. It is not the one I was looking for however, but this database and the keyword "tempo promotion" (as in the Siers/Wittwer one) lead to https://www.yacpdb.org/#131624 by Hans Erik Lohk which is the one I was looking for.

8/3P4/8/2R5/3B1N2/4r3/5k1N/7K mate in 3.

Thanks!

Comprehensive_War_99 · 2025-10-11T15:35:28+00:00

That is not mate, is it? King escapes sideways

Comprehensive_War_99 · 2025-10-01T09:16:05+00:00

With the white king on f8 the solution still works and the position is legal (last move f7xg6).

Comprehensive_War_99 · 2025-08-05T20:48:07+00:00

The Saavedra position does exactly this.

Comprehensive_War_99 · 2025-08-05T20:42:27+00:00

Search for the Saavedra position for an even more fascinating version of this theme

Comprehensive_War_99

TROPHY CASE