MESON Chess Problem Database
Problem Display
PID: 27875 (8/8/q2n1b1R/3P1k1K/6R1/5PP1/6Q1/8 w - - 0 1)
Lebeck, Donald
Mate in Two!! (Lebeck), 1992
#2
7 + 4
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Rg5#
- 1...Bb2
- 2.Rg5#
- 1...Bc3
- 2.Rg5#
- 1...Bd4
- 2.Rg5#
- 1...Be5
- 2.Rg5#
- 1...Bg5
- 2.Rxg5#
- 1...Bg7
- 2.Rg5#
- 1...Bh8
- 2.Rg5#
- 1...Ba1
- Tries
- 1.Re4?
- threat
- 2.Qh3#
- 2.g4#
- 1...Qf1
- 2.g4#
- 1...Sxe4!
- threat
- 1.Qh3?
- threat
- 2.Re4#
- 2.Rg5#
- 1...Qf1
- 2.Rg5#
- 1...Bg5
- 2.Re4#
- 2.Rxg5#
- 1...Se4
- 2.Rxe4#
- 2.Rg5#
- 1...Ke5!
- threat
- 1.Qe2?
- threat
- 2.Rf4#
- 2.Qe6#
- 1...Se4
- 2.Qxe4#
- 1...Qc4
- 2.Qe6#
- 1...Qc8
- 2.Rf4#
- 1...Qa4
- 2.Qe6#
- 1...Be5
- 2.Rg5#
- 1...Bg5
- 2.Rxg5#
- 2.Qe6#
- 1...Sc4
- 2.Rf4#
- 2.Qe4#
- 1...Sb5
- 2.Rf4#
- 2.Qe4#
- 1...Sb7
- 2.Rf4#
- 2.Qe4#
- 1...Sf7
- 2.Rf4#
- 2.Qe4#
- 1...Sc8
- 2.Rf4#
- 2.Qe4#
- 1...Se8
- 2.Rf4#
- 2.Qe4#
- 1...Qxe2!
- threat
- 1.Re4?
- Keys
- 1.Qb2!
- threat
- 2.Rf4#
- 2.Rxf6#
- 2.Qxf6#
- 1...Bxb2
- 2.Rg5#
- 1...Bc3
- 2.Rg5#
- 1...Bd4
- 2.Rg5#
- 1...Qc4
- 2.Rxf6#
- 2.Qxf6#
- 1...Qa1
- 2.Rf4#
- 2.Rxf6#
- 1...Qa4
- 2.Rxf6#
- 2.Qxf6#
- 1...Bh4
- 2.Rf4#
- 1...Be5
- 2.Rg5#
- 1...Bg5
- 2.Rxg5#
- 1...Be7
- 2.Rf4#
- 1...Bg7
- 2.Rf4#
- 2.Rg5#
- 1...Bd8
- 2.Rf4#
- 1...Bh8
- 2.Rf4#
- 2.Rg5#
- 1...Sc4
- 2.Rf4#
- 1...Se4
- 2.Rf4#
- 2.fxe4#
- 1...Sb5
- 2.Rf4#
- 1...Sb7
- 2.Rf4#
- 1...Sf7
- 2.Rf4#
- 1...Sc8
- 2.Rf4#
- 1...Se8
- 2.Rf4#
- threat
- 1.Qb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 3
- Sets
- B(d);N_GUARD::R1(D)
- B(d);N_GUARD,SBLOCK::R1(D)
- B(d);N_GUARD::R1(D),XB(d)
- Tries
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(b);::P(C)
- Refutation
- S(c);XR(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);::QAB(A)+R(D),DCHECK
- Refutation
- K(a);P-FLIGHT
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAB1(A),XS(c)
- Q(b);::QAB1(A)
- Q(b);::R1(D)
- B(d);N_GUARD::R1(D)
- Refutation
- Q(b);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- DUALS(3)
- Vars
- B(d);N_GUARD,XQ(A)::R1(D)
- B(d);N_GUARD::R1(D)
- B(d);::R1(D)
- B(d);N_GUARD::R1(D),XB(d)
- S(c);::R1(D)
Developed and maintained by Brian Stephenson.
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