Daily Puzzle Analysis for Thursday 5.7.26

It’s time for a Thursday Puzzle!

Legend:

• Observations in Yellow

• Strategies in Purple

• Responses (Unforced, Anticipated or Actual) in Orange

• Fails (Potential or Actual) in Red

• Successes (Potential or Actual) in Green

On setting up the board, we observe:

* We are equal on Rooks.

* We are equal on Bishops, ours being light and theirs being dark.

* We are down both kNights.

* There are no Queens.

* We are down a Pawn.

* We have a pawn downfield on the d file.

* Black has a pawn downfield on the a file.

* We have an immediate checking opportunity with Rc8+, but it’s a Rook sac.

* Black’s King has 2 escape squares but is locked to the back rank presently so there is a current King Trap.

* It is our turn to move.

* The puzzle’s title is “Stage Dive”.

* It is Thursday.

The above observations inform potential strategies:

Our Rook is presently only protected from capture by our d pawn, and our d pawn promoting would be terrific for our position. It’s promotion square, d8, is unprotected, and should Black play Ra8 to defend the promotion square, we can Bxa8.

If we march towards promotion immediately, Black can Bxc7, winning our Rook and defending our promotion square with their Bishop. So that’s a no go. Alternately Black could Nxd7, capturing our advancing pawn. We could then Rc8+, but Black could then Nf8 to block and we’ve lost our ability to attack their King. Definitely a no go, on both counts.

If we play anything less than a forcing move, Black can Bxd6 capturing our advancing pawn, so a forcing move it must be.

Opening with Rc8+ forces Nxc8, as Black’s King cannot escape their back rank, and no blockers are available to them.

-----We can now d7, removing our pawn from danger, and threatening Black’s kNight. We now threaten either d8=Q# or dxc8# on our next play. With Black’s kNight now on c8, and our Bishop covering a8, their Rook cannot come to their King’s aid. With two promotion squares now available to us, their kNight can not position to cover d8, so their kNight cannot save them either. Their Bishop can play either Bc7 or Bg5, covering d8, but cannot protect c8 simultaneously.

----------If Bg5, we can dxc8=Q+, forcing Bd8.

---------------We can now finish with Qxd8#.

----------If Bc7, we can dxc8=Q+, forcing Bd8.

---------------We can now finish with Qxd8#. Golden.

Ok, it’s a plan – but how could it fail?

Well, Black does not have to move their Bishop, they could instead open up an escape square for their King with f6, g5, f6, or f5.

In any of these cases, however, we can now Qxa6, winning Black’s Rook.

This solution sees us starting down 7 points of material (2 kNights and a pawn), and emerging up 4 points of material, as we’ve lost our Rook, but captured a Rook and a kNight and have converted our pawn into a Queen. We stand strong with a Queen and a Bishop against a kNight and a Bishop to win the game.

This plan cannot fail.

Ok, so is there a BETTER PLAN?

Not that I can see.

Confident in my plan, I set the board aside and engage with the puzzle online.

Rc8+ is correct, and Black is forced to Nxc8.

d7 is correct, and Black chooses to g5, interesting!

dxc8=Q+ is correct, and Black is forced to Kg7.

Qxa6 is correct, and the PUZZLE IS SOLVED!!!

A thoughtful Thursday puzzle from @EnPassantFork. Excellent composition my friend!

Have an awesome day everyone!