MESON Chess Problem Database
Problem Display
PID: 27198 (4R3/8/3Q4/2nrp3/3k4/3PR3/3P2K1/8 w - - 0 1)
Lebeck, Donald
Mate in Two!! (Lebeck), 1992
#2
6 + 4
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Qb4#
- 1...Sa4
- 2.Qb4#
- 1...Se4
- 2.Qb4#
- 1...Se6
- 2.Qb4#
- 1...Sb7
- 2.Qb4#
- 1...Sd7
- 2.Qb4#
- 1...Sb3
- Tries
- 1.R8xe5?
- threat
- 2.Rxd5#
- 2.Qxd5#
- 1...Sxd3
- 2.R3e4#
- 2.R5e4#
- 2.Qxd5#
- 1...Rxd6!
- threat
- 1.Qc7?
- 1...Sxd3
- 2.Qc3#
- 1...Rd6
- 2.Qxd6#
- 1...Rd7
- 2.Qxe5#
- 1...Rd8
- 2.Qxe5#
- 1...Sb3
- 2.Qc3#
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Se4
- 2.Qc4#
- 1...Sa6
- 2.Qc3#
- 2.Qc4#
- 1...Se6
- 2.Qc3#
- 2.Qc4#
- 1...Sb7
- 2.Qc3#
- 2.Qc4#
- 1...Sd7
- 2.Qc3#
- 2.Qc4#
- 1...e4!
- 1...Sxd3
- 1.Qb6?
- threat
- 2.Qb2#
- 2.Qb4#
- 1...Rd6
- 2.Qxd6#
- 1...Rd8
- 2.Rxd8#
- 1...Rd7!
- threat
- 1.R8xe5?
- Keys
- 1.Rd8!
- threat
- 2.Qxe5#
- 2.Qxd5#
- 1...Rxd6
- 2.Rxd6#
- 1...Sxd3
- 2.Qxd5#
- 1...Sb3
- 2.Qb4#
- 2.Qxd5#
- 1...Sa4
- 2.Qb4#
- 2.Qxd5#
- 1...Se4
- 2.Qb4#
- 2.Qxd5#
- 1...Sa6
- 2.Qxd5#
- 1...Se6
- 2.Qb4#
- 2.Qxd5#
- 1...Sb7
- 2.Qb4#
- 2.Qxd5#
- 1...Sd7
- 2.Qb4#
- 1...e4
- 2.Qxd5#
- 2.Qf6#
- threat
- 1.Rd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- S(b);OGATE::QAR2(E)
- Tries
- Try
- R(F);XP(d)
- Threat
- DUALS(2)
- Refutation
- R(c);N_SPINR(c),XQ(E)
- Try
- Q(E);N_PINR(c)
- Vars
- S(b);OGATE,XP(C)::QAB1(E)
- R(c);OGATEB::QAR2(E),XR(c)
- R(c);N_GUARD::QAB1(E),XP(d)
- S(b);OGATE::QAR1(E)
- Refutation
- P(d);
- Try
- Q(E);N_PINR(c),P_PINS(b)
- Threat
- DUALS(2)
- Vars
- R(c);OGATEB::QAR2(E),XR(c)
- R(c);OGATEB::R(F),XR(c)
- Refutation
- R(c);
- Try
- Actual
- R(F);
- Threat
- DUALS(2)
- Vars
- R(c);OGATE,XQ(E)::R(F),XR(c)
- S(b);XP(C)::QAR1(E),XR(c)
- S(b);::QAR1(E),XR(c)
- S(b);OGATE::QAR2(E)
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