MESON Chess Problem Database
Problem Display
PID: 69844 (1r1n1nNK/1p1p1p2/1P1k1Np1/8/3B4/3pR3/6r1/2R2b1Q w - - 0 1)
Burger, Robert Eugene
Mat Plus, 1997
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Ra2
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Rb2
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Rc2
- 2.Se8#
- 2.Qd5#
- 1...Rd2
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Re2
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Rf2
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Rh2+
- 2.Qxh2#
- 1...Rg3
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Rg4
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Rg5
- 2.Se8#
- 1...Sc6
- 2.Bc5#
- 1...Sde6
- 2.Be5#
- 1...Sfe6
- 2.Be5#
- 1...Rg1
- Tries
- 1.Rc7?
- threat
- 2.Bc5#
- 1...Rh2+
- 2.Qxh2#
- 1...Rc2
- 2.Se8#
- 2.Qd5#
- 1...Rg5
- 2.Se8#
- 1...Sde6
- 2.Be5#
- 1...Sfe6
- 2.Be5#
- 1...Sc6!
- threat
- 1.Re5?
- threat
- 2.Se4#
- 2.Se8#
- 1...Rc2
- 2.Se8#
- 2.Qd5#
- 1...Re2
- 2.Se8#
- 2.Qd5#
- 1...Rg4
- 2.Se8#
- 2.Qd5#
- 1...Sc6
- 2.Se4#
- 1...Sde6
- 2.Se4#
- 2.Rd5#
- 1...Rh2+!
- threat
- 1.Re7?
- threat
- 2.Be5#
- 1...Rh2+
- 2.Qxh2#
- 1...Rc2
- 2.Se8#
- 2.Qd5#
- 1...Re2
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 1...Rg5
- 2.Se8#
- 1...Sc6
- 2.Bc5#
- 1...Sfe6
- 2.Rxd7#
- 1...Sde6!
- threat
- 1.Qxg2?
- threat
- 2.Se8#
- 2.Bc5#
- 2.Qd5#
- 2.Qh2#
- 2.Qg3#
- 1...Rc8
- 2.Se8#
- 2.Qd5#
- 2.Qh2#
- 2.Qg3#
- 1...Sc6
- 2.Bc5#
- 2.Qd5#
- 1...Sde6
- 2.Be5#
- 2.Qd5#
- 1...Sfe6
- 2.Se8#
- 2.Be5#
- 2.Qd5#
- 1...Bxg2!
- threat
- 1.Qh2+?
- 1...Rg3
- 2.Qxg3#
- 1...Rxh2+!
- 1...Rg3
- 1.Qh6?
- threat
- 2.Qf4#
- 2.Qxf8#
- 1...Rf2
- 2.Qxf8#
- 1...Rh2
- 2.Qxh2#
- 1...Rg4
- 2.Qxf8#
- 1...Rg5
- 2.Qxf8#
- 1...Sc6
- 2.Bc5#
- 1...Sde6
- 2.Be5#
- 1...Sfe6
- 2.Be5#
- 1...Sh7
- 2.Qf4#
- 1...g5
- 2.Qxf8#
- 1...Rc2!
- threat
- 1.Rc7?
- Keys
- 1.Rc5!
- threat
- 2.Se8#
- 1...Rh2+
- 2.Qxh2#
- 1...Sc6
- 2.Rd5#
- 1...Sde6
- 2.Se4#
- threat
- 1.Rc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(b);CHECK,N_GUARD::QAB(B),XR(b)
- R(b);::S(F)
- S(j);SBLOCK::B(D)
- S(k);SBLOCK::B(D)
- Tries
- Try
- R(A);
- Threat
- B(D)
- Vars
- R(b);CHECK,N_GUARD::QAB(B),XR(b)
- R(b);::S(F)
- S(j);SBLOCK::B(D)
- S(k);SBLOCK::B(D)
- Refutation
- S(j);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- S(j);::S(F)
- Refutation
- R(b);CHECK
- Try
- R(C);
- Threat
- B(D)
- Vars
- R(b);CHECK,N_GUARD::QAB(B),XR(b)
- R(b);::S(F)
- S(j);SBLOCK::B(D)
- S(k);N_GUARD,SBLOCK::R1(C),XP(g)
- Refutation
- S(j);
- Try
- Q(B);XR(b)
- Threat
- DUALS(5)
- Refutation
- B(a);XQ(B)
- Try
- Q(B);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB(B),XR(b)
- Refutation
- R(b);CHECK,XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(b);::QAB(B),XS(k)
- R(b);N_GUARD,P_PINQ(B)::QAB(B),XR(b)
- S(j);SBLOCK::B(D)
- S(k);SBLOCK::B(D)
- S(k);::QAB(B)
- P(e);::QAB(B),XS(k)
- Refutation
- R(b);
- Try
- Actual
- R(A);
- Threat
- S(F)
- Vars
- R(b);CHECK,N_GUARD::QAB(B),XR(b)
- S(j);SBLOCK::R1(A)
- S(j);SBLOCK::S(F)
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