MESON Chess Problem Database
Problem Display
PID: 212372 (8/2P1p2N/p5Q1/Pp2kr2/1R1b4/K1N1p2B/4P2P/3R4 w - - 0 1)
Sushkov, Yuri Akimovich
The Problemist, 1986
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Qxf5#
- 2.Qg3#
- 1...Rf4
- 2.Qe6#
- 1...Rh5
- 2.Qg3#
- 1...Bxc3
- 2.Qxf5#
- 1...Bc5
- 2.Rd5#
- 2.Qxf5#
- 1...Bb6
- 2.Rd5#
- 2.Re4#
- 2.Qxf5#
- 1...Ba7
- 2.Rd5#
- 2.Re4#
- 2.Qxf5#
- 1...Kf4
- Tries
- 1.Rdxd4?
- threat
- 2.Re4#
- 2.Rd5#
- 2.Qxf5#
- 1...Rf1
- 2.Re4#
- 2.Rd5#
- 2.Qe4#
- 2.Qe6#
- 1...Rf2
- 2.Re4#
- 2.Rd5#
- 2.Qe4#
- 2.Qe6#
- 1...Rf3
- 2.Re4#
- 2.Rd5#
- 2.Qe4#
- 2.Qe6#
- 1...Rf4
- 2.Rd5#
- 2.Qe6#
- 1...Rg5
- 2.Re4#
- 2.Rd5#
- 2.Qe4#
- 2.Qxg5#
- 2.Qe6#
- 1...Rh5
- 2.Re4#
- 2.Rd5#
- 2.Qe4#
- 2.Qxh5#
- 2.Qg3#
- 2.Qe6#
- 2.Qg7#
- 1...Rf6
- 2.Rd5#
- 2.Qe4#
- 1...Rf7
- 2.Re4#
- 2.Rd5#
- 2.Qe4#
- 2.Qe6#
- 1...Rf8
- 2.Re4#
- 2.Rd5#
- 2.Qe4#
- 2.Qe6#
- 1...e6!
- threat
- 1.Rbxd4?
- threat
- 2.Re4#
- 2.Qxf5#
- 1...Rf1
- 2.Re4#
- 2.Qe4#
- 2.Qe6#
- 1...Rf2
- 2.Re4#
- 2.Qe4#
- 2.Qe6#
- 1...Rf3
- 2.Re4#
- 2.Qe4#
- 2.Qe6#
- 1...Rf4
- 2.Rd5#
- 2.Qe6#
- 1...Rg5
- 2.Re4#
- 2.Qe4#
- 2.Qxg5#
- 2.Qe6#
- 1...Rh5
- 2.Re4#
- 2.Qe4#
- 2.Qxh5#
- 2.Qg3#
- 2.Qe6#
- 2.Qg7#
- 1...Rf6
- 2.Re4#
- 2.Qe4#
- 1...Rf7
- 2.Re4#
- 2.Qe4#
- 2.Qe6#
- 1...Rf8
- 2.Re4#
- 2.Qe4#
- 2.Qe6#
- 1...e6
- 2.Re4#
- 1...b4+!
- threat
- 1.Qe6+?
- 1...Kf4
- 2.Rf1#
- 2.Rdxd4#
- 2.Rbxd4#
- 2.Qxf5#
- 2.Qe4#
- 1...Kxe6!
- 1...Kf4
- 1.c8Q?
- threat
- 2.Qcxf5#
- 2.Qc7#
- 2.Qb8#
- 1...Kf4
- 2.Qgxf5#
- 2.Qcxf5#
- 2.Qg3#
- 1...e6
- 2.Qc7#
- 2.Qb8#
- 1...Rf1
- 2.Qc7#
- 2.Qb8#
- 1...Rf2
- 2.Qc7#
- 2.Qb8#
- 1...Rf3
- 2.Qc7#
- 2.Qb8#
- 1...Rf4
- 2.Qce6#
- 2.Qge6#
- 2.Qc7#
- 2.Qb8#
- 1...Rg5
- 2.Qc7#
- 2.Qb8#
- 1...Rh5
- 2.Qg3#
- 2.Qc7#
- 2.Qb8#
- 1...Rf7
- 2.Qc7#
- 2.Qb8#
- 1...Rf8
- 2.Qc7#
- 1...Bc5
- 2.Rd5#
- 2.Qgxf5#
- 2.Qcxf5#
- 2.Qce6#
- 2.Qge6#
- 2.Qxc5#
- 1...Bb6
- 2.Rd5#
- 2.Re4#
- 2.Qgxf5#
- 2.Qcxf5#
- 2.Qce6#
- 2.Qge6#
- 1...Ba7
- 2.Rd5#
- 2.Re4#
- 2.Qgxf5#
- 2.Qcxf5#
- 2.Qce6#
- 2.Qge6#
- 2.Qc7#
- 1...Rf6!
- threat
- 1.c8S?
- threat
- 2.Qxf5#
- 1...Kf4
- 2.Qxf5#
- 2.Qg3#
- 1...Rf1
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rf3
- 2.Qe4#
- 1...Rf4
- 2.Qe6#
- 1...Rg5
- 2.Qe4#
- 2.Qxg5#
- 1...Rh5
- 2.Qe4#
- 2.Qg3#
- 1...Rf6
- 2.Qe4#
- 1...Rf7
- 2.Qe4#
- 1...Rf8
- 2.Qe4#
- 1...e6!
- threat
- 1.Rdxd4?
- Keys
- 1.Qb6!
- 1...Kf4
- 2.Qxd4#
- 1...Bxc3
- 2.Qxe3#
- 1...Bxb6
- 2.Re4#
- 1...Rf1
- 2.Qxd4#
- 1...Rf2
- 2.Qxd4#
- 1...Rf3
- 2.Qxd4#
- 1...Rf4
- 2.Qe6#
- 1...Rg5
- 2.Qxd4#
- 1...Rh5
- 2.Qxd4#
- 1...Rf6
- 2.Qxd4#
- 1...Rf7
- 2.Qxd4#
- 1...Rf8
- 2.Qxd4#
- 1...Bc5
- 2.Rd5#
- 1...e6
- 2.Qxd4#
- 1...Kf4
- 1.Qb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- R(e);SBLOCK::QAR1(I)
- R(e);N_GUARD::QAB(I)
- B(b);XS(E)::QAR1(I),XR(e)
- Tries
- Try
- R(A);XB(b)
- Threat
- DUALS(3)
- Refutation
- P(g);
- Try
- R(G);XB(b)
- Threat
- DUALS(2)
- Vars
- P(g);::R1(G)
- Refutation
- P(c);CHECK
- Try
- Q(I);CHECK
- Refutation
- K(d);P-FLIGHT,P_SPINR(e),XQ(I)
- Try
- P(J);
- Threat
- DUALS(3)
- Vars
- R(e);::QAB(J)
- Refutation
- R(e);
- Try
- P(J);
- Threat
- QAR1(I),XR(e)
- Vars
- R(e);OGATE::QAR1(I)
- R(e);SBLOCK::QAR1(I)
- Refutation
- P(g);
- Try
- Actual
- Q(I);
- Vars
- K(d);P_SPINB(b),S_FLIGHT::QAR2(I),XB(b)
- B(b);OGATE,XS(E)::QAR2(I),XP(a)
- B(b);OGATE,XQ(I)::R1(G)
- R(e);::QAB1(I),XB(b)
- R(e);SBLOCK::QAR1(I)
- B(b);OGATE,P_PINR(G)::R1(A)
- P(g);SBLOCK::QAB1(I),XB(b)
Developed and maintained by Brian Stephenson.
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