MESON Chess Problem Database
Problem Display
PID: 241281 (Q3N3/4pb1p/5p1k/5P1P/4NP1K/2p5/8/b7 w - - 0 1)
Borovik, Boris V
Schweizerische Schachzeitung, 1990
#3
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Ba2
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.Sf2
- 1...Bg8
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.Sf2
- 1...e5
- 2.Qa3
- threat
- 3.Qf8#
- threat
- 2.Qa3
- 1...e6
- 2.Qa3
- threat
- 3.Qf8#
- threat
- 2.Qa3
- 1...Ba2
- Tries
- 1.S4xf6?
- threat
- 2.Sg4#
- 1...exf6
- 2.Qa3
- threat
- 3.Qf8#
- threat
- 2.Qa3
- 1...Bxe8!
- threat
- 1.S8d6?
- threat
- 2.Qf8#
- 1...Kg7
- 2.h6+
- 2...Kxh6
- 3.Qf8#
- 2...Kxh6
- 2.h6+
- 1...Be8!
- threat
- 1.S8xf6?
- threat
- 2.Qf8#
- 1...Kg7
- 2.h6+
- 2...Kxh6
- 3.Qf8#
- 2...Kxh6
- 2.h6+
- 1...Be8!
- threat
- 1.Sc7?
- threat
- 2.Qf8#
- 1...Kg7
- 2.h6+
- 2...Kxh6
- 3.Qf8#
- 2...Kxh6
- 2.h6+
- 1...Be8!
- threat
- 1.Sg7?
- threat
- 2.Qf8
- threat
- 3.Se6#
- 3.Se8#
- threat
- 2.Qf8
- 1...Kxg7
- 2.h6+
- 2...Kxh6
- 3.Qf8#
- 2...Kxh6
- 2.h6+
- 1...Bxh5
- 2.Sxh5
- threat
- 3.Qf8#
- threat
- 2.Qf8
- threat
- 3.Sxh5#
- 3.Se6#
- 3.Se8#
- threat
- 2.Sxh5
- 1...Be6
- 2.Sxe6
- threat
- 3.Qf8#
- threat
- 2.Qf8
- threat
- 3.Sxe6#
- 3.Se8#
- threat
- 2.Sxe6
- 1...e6
- 2.Qf8
- threat
- 3.Sxe6#
- 3.Se8#
- threat
- 2.Qf8
- 1...Be8!
- threat
- 1.Qb7?
- threat
- 2.Qxe7
- threat
- 3.Qf8#
- threat
- 2.Qxe7
- 1...Bxh5
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Ba2
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...Bb3
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- 2...Bd1
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bc4
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- 2...Be2
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bd5
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- 2...Bf3
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Be6
- 2.S4xf6
- threat
- 3.Sg4#
- 2...Bxf5
- 3.Sg8#
- 2...exf6
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bg6
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Bg8
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 3.Sxg8#
- 2...exf6
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...e5
- 2.Sf2
- threat
- 3.Sg4#
- 2...Bxh5
- 3.Qg7#
- threat
- 2.Sg5
- threat
- 3.Sxf7#
- 2...fxg5+
- 3.fxg5#
- 2...Bxh5
- 3.Qg7#
- 3.Qxh7#
- 2...Bxe8
- 3.Qxh7#
- 2...Ba2
- 3.Qg7#
- 3.Qxh7#
- 2...Bb3
- 3.Qg7#
- 3.Qxh7#
- 2...Bc4
- 3.Qg7#
- 3.Qxh7#
- 2...Bd5
- 3.Qg7#
- 3.Qxh7#
- 2...Be6
- 3.Qg7#
- 3.Qxh7#
- 2...Bg6
- 3.Qg7#
- 2...Bg8
- 3.Qg7#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 2...Bxh5
- 3.Sg8#
- 3.Qg7#
- 3.Qxh7#
- threat
- 2.Qb4
- threat
- 3.Qf8#
- threat
- 2.Qe7
- threat
- 3.Qf8#
- threat
- 2.Qxf7
- threat
- 3.Qxf6#
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Sf2
- 1...e6
- 2.Sg5
- threat
- 3.Sxf7#
- 2...fxg5+
- 3.fxg5#
- 2...Bxh5
- 3.Qg7#
- 3.Qxh7#
- 2...Bxe8
- 3.Qxh7#
- 2...Bg6
- 3.Qg7#
- 2...Bg8
- 3.Qg7#
- threat
- 2.Qb4
- threat
- 3.Qf8#
- threat
- 2.Qe7
- threat
- 3.Qf8#
- threat
- 2.Qxf7
- threat
- 3.Qxf6#
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Sg5
- 1...Bb2!
- threat
- 1.Qa3?
- threat
- 2.Qxe7
- threat
- 3.Qf8#
- threat
- 2.Qxe7
- 1...Bxh5
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Ba2
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qf8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...Bb3
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qf8#
- 2...Bd1
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bc4
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qf8#
- 2...Be2
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bd5
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qf8#
- 2...Bf3
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Be6
- 2.S4xf6
- threat
- 3.Sg4#
- 2...Bxf5
- 3.Sg8#
- 2...exf6
- 3.Qf8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bg6
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Bg8
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 3.Sxg8#
- 2...exf6
- 3.Qf8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...Bb2!
- threat
- 1.Qa7?
- threat
- 2.Qxe7
- threat
- 3.Qf8#
- threat
- 2.Qxe7
- 1...Bxh5
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Ba2
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- threat
- 2.Qg1
- threat
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...Bb3
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- 2...Bd1
- 3.Sg8#
- threat
- 2.Qg1
- threat
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bc4
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- 2...Be2
- 3.Sg8#
- threat
- 2.Qg1
- threat
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bd5
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qg7#
- 2...Bf3
- 3.Sg8#
- threat
- 2.Qg1
- threat
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Be6
- 2.S4xf6
- threat
- 3.Sg4#
- 2...Bxf5
- 3.Sg8#
- 2...exf6
- 3.Qg7#
- threat
- 2.Qg1
- threat
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bg6
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Bg8
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 3.Sxg8#
- 2...exf6
- 3.Qg7#
- threat
- 2.Qg1
- threat
- 3.Qg7#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...e5
- 2.Sf2
- threat
- 3.Sg4#
- 2...Bxh5
- 3.Qg7#
- threat
- 2.Sg5
- threat
- 3.Sxf7#
- 2...fxg5+
- 3.fxg5#
- 2...Bxh5
- 3.Qg7#
- 3.Qxh7#
- 2...Bxe8
- 3.Qxh7#
- 2...Ba2
- 3.Qg7#
- 3.Qxh7#
- 2...Bb3
- 3.Qg7#
- 3.Qxh7#
- 2...Bc4
- 3.Qg7#
- 3.Qxh7#
- 2...Bd5
- 3.Qg7#
- 3.Qxh7#
- 2...Be6
- 3.Qg7#
- 3.Qxh7#
- 2...Bg6
- 3.Qg7#
- 2...Bg8
- 3.Qg7#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 2...Bxh5
- 3.Sg8#
- 3.Qg7#
- 3.Qxh7#
- threat
- 2.Qc5
- threat
- 3.Qf8#
- threat
- 2.Qa3
- threat
- 3.Qf8#
- threat
- 2.Qe7
- threat
- 3.Qf8#
- threat
- 2.Qxf7
- threat
- 3.Qxf6#
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Sf2
- 1...e6
- 2.Sg5
- threat
- 3.Sxf7#
- 2...fxg5+
- 3.fxg5#
- 2...Bxh5
- 3.Qg7#
- 3.Qxh7#
- 2...Bxe8
- 3.Qxh7#
- 2...Bg6
- 3.Qg7#
- 2...Bg8
- 3.Qg7#
- threat
- 2.Qc5
- threat
- 3.Qf8#
- threat
- 2.Qa3
- threat
- 3.Qf8#
- threat
- 2.Qe7
- threat
- 3.Qf8#
- threat
- 2.Qxf7
- threat
- 3.Qxf6#
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Sg5
- 1...Bb2!
- threat
- 1.Qd8?
- threat
- 2.Qxe7
- threat
- 3.Qf8#
- threat
- 2.Qxe7
- 1...Bxh5
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Ba2
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qxf6#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...Bb3
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qxf6#
- 2...Bd1
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bc4
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qxf6#
- 2...Be2
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bd5
- 2.S4xf6
- threat
- 3.Sg4#
- 2...exf6
- 3.Qxf6#
- 2...Bf3
- 3.Sg8#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Be6
- 2.S4xf6
- threat
- 3.Sg4#
- 2...Bxf5
- 3.Sg8#
- 2...exf6
- 3.Qxf6#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.S4xf6
- 1...Bg6
- 2.Qxe7
- threat
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Qxe7
- 1...Bg8
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.S4xf6
- threat
- 3.Sg4#
- 3.Sxg8#
- 2...exf6
- 3.Qxf6#
- threat
- 2.Qxe7
- threat
- 3.Qxf6#
- 3.Qf8#
- 3.Qg7#
- threat
- 2.Sf2
- 1...e5
- 2.Qxf6+
- 2...Bg6
- 3.Qg5#
- 3.Qg7#
- 3.Qf8#
- 2...Bg6
- 2.Qe7
- threat
- 3.Qf8#
- threat
- 2.Qd6
- threat
- 3.Qf8#
- threat
- 2.Qxf6+
- 1...e6
- 2.Qxf6+
- 2...Bg6
- 3.Qg5#
- 3.Qg7#
- 3.Qf8#
- 2...Bg6
- 2.Qe7
- threat
- 3.Qf8#
- threat
- 2.Qd6
- threat
- 3.Qf8#
- threat
- 2.Qxf6+
- 1...Bb2!
- threat
- 1.S4xf6?
- Keys
- 1.Qa2!
- threat
- 2.Qxf7
- threat
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Qxf7
- 1...Bxa2
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.Sf2
- 1...Bxh5
- 2.Qg8
- threat
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Qg8
- 1...Bxe8
- 2.Qg8
- threat
- 3.Qf8#
- threat
- 2.Qg8
- 1...Bb3
- 2.Qg2
- threat
- 3.Qg7#
- threat
- 2.Qg2
- 1...Bc4
- 2.Qg2
- threat
- 3.Qg7#
- threat
- 2.Qg2
- 1...Bd5
- 2.Qg2
- threat
- 3.Qg7#
- threat
- 2.Qg2
- 1...Be6
- 2.Qg2
- threat
- 3.Qg7#
- threat
- 2.Qg2
- 1...Bg6
- 2.Qg8
- threat
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Qg8
- 1...Bg8
- 2.Sf2
- threat
- 3.Sg4#
- threat
- 2.Qxg8
- threat
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Qg2
- threat
- 3.Qg7#
- threat
- 2.Sf2
- 1...e5
- 2.Qxf7
- threat
- 3.Qxf6#
- 3.Qg7#
- 3.Qf8#
- threat
- 2.Qa3
- threat
- 3.Qf8#
- threat
- 2.Qxf7
- 1...e6
- 2.Qa3
- threat
- 3.Qf8#
- threat
- 2.Qa3
- threat
- 1.Qa2!
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