MESON Chess Problem Database
Problem Display
PID: 27344 (KR6/1n6/1kq5/1P6/1B6/8/8/R4Q2 w - - 0 1)
Lebeck, Donald
Mate in Two!! (Lebeck), 1992
#2
6 + 3
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Rxb7#
- 1...Qc2
- 2.Rxb7#
- 1...Qc3
- 2.Rxb7#
- 1...Qc4
- 2.Rxb7#
- 1...Qc5
- 2.Ba5#
- 2.Rxb7#
- 1...Qd6
- 2.Rxb7#
- 1...Qe6
- 2.Rxb7#
- 1...Qf6
- 2.Rxb7#
- 1...Qg6
- 2.Rxb7#
- 1...Qh6
- 2.Rxb7#
- 1...Qc7
- 2.Ra6#
- 1...Qc1
- Tries
- 1.Qf6?
- threat
- 2.Rxb7#
- 2.Qxc6#
- 1...Kc7
- 2.Qxc6#
- 1...Qxf6
- 2.Rxb7#
- 1...Qd6
- 2.Rxb7#
- 1...Qe6
- 2.Rxb7#
- 1...Kxb5!
- threat
- 1.Qf6?
- Keys
- 1.Qc4!
- threat
- 2.Ba5#
- 2.Qxc6#
- 1...Kc7
- 2.Qxc6#
- 1...Qxb5
- 2.Rxb7#
- 1...Qxc4
- 2.Rxb7#
- 1...Qh1
- 2.Ba5#
- 2.Ra6#
- 2.Qc5#
- 1...Qg2
- 2.Ba5#
- 2.Ra6#
- 2.Qc5#
- 1...Qf3
- 2.Ba5#
- 2.Ra6#
- 2.Qc5#
- 1...Qe4
- 2.Ba5#
- 2.Ra6#
- 2.Qc5#
- 1...Qd5
- 2.Ba5#
- 2.Ra6#
- 1...Qd7
- 2.Ba5#
- 2.Ra6#
- 2.Qc5#
- 1...Qe8
- 2.Ba5#
- 2.Ra6#
- 2.Qc5#
- 1...Qc5
- 2.Ba5#
- 2.Rxb7#
- 2.Qxc5#
- 1...Qd6
- 2.Ba5#
- 2.Ra6#
- 2.Rxb7#
- 1...Qe6
- 2.Ba5#
- 2.Ra6#
- 2.Rxb7#
- 2.Qc5#
- 1...Qf6
- 2.Ba5#
- 2.Ra6#
- 2.Rxb7#
- 2.Qc5#
- 1...Qg6
- 2.Ba5#
- 2.Ra6#
- 2.Rxb7#
- 2.Qc5#
- 1...Qh6
- 2.Ba5#
- 2.Ra6#
- 2.Rxb7#
- 2.Qc5#
- 1...Qc7
- 2.Ba5#
- 2.Ra6#
- 1...Qc8
- 2.Ba5#
- 2.Ra6#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(b);N_GUARD::R1(F),XS(c)
- Q(b);SBLOCK::R1(A)
- Tries
- Try
- Q(B);P_PINQ(b)
- Threat
- DUALS(2)
- Vars
- K(a);N_SPINQ(b),N_SPINS(c),S_FLIGHT::QAR1(B),XQ(b)
- Q(b);N_SPINQ(b),XQ(B)::R1(F),XS(c)
- Q(b);::R1(F),XS(c)
- Refutation
- K(a);N_SPINQ(b),P-FLIGHT,XP(D)
- Try
- Actual
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(a);N_SPINS(c),P_SPINQ(b),S_FLIGHT::QAR1(B),XQ(b)
- Q(b);N_GUARD,XP(D)::R1(F),XS(c)
- Q(b);N_GUARD,XQ(B)::R1(F),XS(c)
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