Winning blow: bishop to f5 (g6·3)
c9-12821naming tag (square·N)Opens in the app if installed, otherwise downloads the APK.
The tactical motive
Chess960 twist: use the unusual starting setup of the pieces.
Winning tactic: there is a move that gains a decisive advantage — find it.
Difficulty 1200 ShuffleRating — club-player level.
White to move — find the best continuation
How to recognize this tactic
In Chess960 the pieces start on unfamiliar squares, so tactics appear earlier and from unusual angles. Do not trust classical patterns — read the actual lines of the bishops, the rooks and the queen from where they really stand in this position.
This position hides a concrete tactic that wins material or mates. Start with the most forcing candidate moves — checks, captures and threats — and calculate each to a clear end before choosing; the winning line is usually the one the opponent cannot meet.
General method: before you move, list the forcing candidates — every check, every capture, every direct threat — and calculate those first. The solution to a tactic is almost always among them.
Position on the board
White: king c2, queen c6, bishop g6, knight d5, pawn d2 g3 a4.
Black: king c8, queen h2, rook e1, bishop c7, knight b5, pawn h4 c5 f6 a7 g7.
7 white and 10 black pieces are on the board; the puzzle position arises after move 35.
The position in numbers
Black are ahead by 7 points of material (18 against 25; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on c2, the black king on c8.
It is White to move on move 35, with 34 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 3 pawns, Black 5. Files fully open (no pawns of either colour): b, e — natural highways for the rooks and queen. Half-open for White: c, f, h.
The White king has 3 empty squares to step to right now — the fewer they are, the closer a mating net.
Solution & explanation
Main line
35. Bf5+ Kb8 36. Qxb5+ Bb6 37. Qd7 Qxd2+ 38. Kxd2
Why it works
- Great move! bishop to f5 keeps the pressure (#18).
- Well found: queen to b5 (#13).
- A natural move: queen to d7.
- Great move! king to d2 keeps the pressure (#11).
- You win a piece — the queen.
- If instead Kb8, then Qxb5+ and you win the knight.
Move by move
- 35. Bf5+ — bishop to f5 with check
- Kb8 — king to b8
- 36. Qxb5+ — queen to b5 (capture) with check
- Bb6 — bishop to b6
- 37. Qd7 — queen to d7
- Qxd2+ — queen to d2 (capture) with check
- 38. Kxd2 — king to d2 (capture)
Types in this puzzle
Winning blow
Find the strike that wins material by force.
A winning blow is a forced material gain that does not fit a single textbook motif. The general tactical recipe applies: spot loose pieces, an awkwardly placed king, overloaded lines. Go through the forcing moves in order of violence — checks, captures, threats — because most combinations start with one of them. Do not judge by feel: calculate the concrete line until the outcome is beyond doubt.
About this position
These pieces come from starting position #876.
SP-876 · ThroneScout — King on a central file (d/e) with a knight starting on the rim (a/h).
The king starts on d1, the rooks on c1 and e1, the queen on a1.
Castling long simply swaps the two pieces: the king on d1 and the rook on c1 trade places.
The bishops stand on b1 and g1; their long diagonals reach h7 and a7 once the c- and f-pawns step aside.
One second-rank pawn starts with no defender at all: g2.
The setup belongs to the ThroneScout family; read right to left it becomes position 92.
The engine's main line opens with f3.
Morozov Balance Index: 18 of 100 — class D — largest edge. Engine evaluation of the starting position: +38 centipawns for White (depth 43, 400 000 000 nodes).
Explore position #876Provenance
Mined from the project's engine self-play games.
Pack 008 · SP-876
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