Checkmate in seven moves! | ChessBase


Stuart Rachels Chess Puzzles, Part 2

Let’s dive straight into the fun and install Stuart Rachels’ latest chess puzzles. This time we start with a seven-move checkmate and end the series with a ten-move checkmate.

Build a chess game that ends with …

As you know, you can move the pieces on each of the chart boards and try to build sets that end as specified.

Build a chess game that ends with …

Solutions from part one:

Grandmaster Jonathan Speelman, who is a good friend of Stuart Rachels, was very interested in these creative puzzles. He admitted that it took him days to solve the very first puzzle. Rachels and Speelman exchanged studies and verified many variations. In doing so, Jonathan “cooked” one of Stuart’s puzzles. This means that he found a combination achieving the desired result even faster than the original solution!

Jonathan Speelman’s Twitch stream on puzzles was very informative and interesting! It explains how to approach and approach this kind of puzzles.

All of Jon Speelman’s built partner approaches and analyzes for proofreading:

We’ve warned you how difficult the puzzles are. If you could really have found a solution, the satisfaction must have been immense. Plus, you will have experienced the creative beauty of the puzzles and the work Rachel puts into them.

First solution:

  1. c4 Nf6
  2. Qb3 Ne4
  3. Qxb7 Bxb7
  4. Kd1 Nxd2
  5. Kc2 Nxb1
  6. Kxb1 Be4 mate

Note that White could also play c3 on the first move.

What stands out is that the White King wasn’t even hit in the first three hits. The black bishop’s maneuver towards b7 was necessary.

The other solution to the puzzle can be found in the analysis of Jonathan Speelman’s replayer.

Second solution:

  1. d3 e5
  2. Kd2 e4
  3. Kc3 exd3
  4. b4 dxc2
  5. Qd4 cxb1 (Q)
  6. Qxg7 Qd3 +
  7. Kb2 Bxg7 companion

Rachels points out that the solution can also start 1.d4 e5 2. Rd2 exd4 3. b4 d3 4. Rc3

The problem is solved, thanks to Black’s superb excelsior pawn march. All solutions without the pawn fail, because the white king simply cannot make illegal moves and pass a check.

Third solution:

  1. d4 d5
  2. Bd2 Nc6
  3. Na3 Nxd4
  4. Sib4 Nb3
  5. Qxd5 e6
  6. Qxb7 Kd7
  7. Kd1 Bxb4
  8. Qxc8 + Kxc8 companion

Rachels and Speelman collaborated on this puzzle for a while and came to the conclusion that if the black and white pieces are swapped, the position can be reached half a shot sooner.

Both chess masters are good gentlemen and it seems no one wanted to brag about who found the quickest solution.

3 faster solution:

  1. Nf3 Nc6
  2. Ne5 Nd4
  3. Nxd7 Nxe2
  4. Nb6 Qxd2
  5. Kxd2 Bh3
  6. g4 Nxc1
  7. Sib5 + Rd8
  8. Kxc1 #

It is just fantastic to see how different the two solutions are in the end. Both have the same maneuver with the king moving in front of the queen, but the biggest difference is in the movements of the knight. Of course, the black and white pieces have been swapped.

Further analysis is visible in the replayer.

Solution four:

  1. e3 e5
  2. Na3 Bxa3
  3. Qh5 Bxb2
  4. Bxb2 Ne7
  5. 0-0-0 0-0
  6. Qxf7 + Kh8
  7. Ba1 e4
  8. Kb2 g6
  9. Ka3

Stuart Rachels:

I only see two possible final positions; Black can also play… g5 (instead of… g6). Of course, White can also play Qf3 instead of Qh5.

Single castling on both sides led to this result.

We look forward to your analysis, ideas and approaches in the comments section.

Connections:


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