MESON Chess Problem Database
Problem Display
PID: 159604 (8/8/1RP5/N1P2RN1/r2k2r1/B1pp4/2P4P/2Q4K w - - 0 1)
Bergmann, R
Tomson, Brian
Chess in Australia, 1983
#2
11 + 5
| 15561 | Fifty Chess Problems (Brian Tomson) | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Rxa3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb3#
- 1...Rxa5
- 2.Rb4#
- 1...Rg1+
- 2.Qxg1#
- 1...Rg2
- 2.Qf4#
- 1...Rg3
- 2.Qf4#
- 1...Re4
- 2.Sf3#
- 1...Rf4
- 2.Qxf4#
- 1...Rh4
- 2.Qg1#
- 1...Rxg5
- 2.Qf4#
- 1...Rxa3
- Tries
- 1.Rb7?
- threat
- 2.Rd7#
- 1...Rg1+
- 2.Qxg1#
- 1...Rxa5
- 2.Rb4#
- 1...Rxg5
- 2.Qf4#
- 1...d2!
- threat
- 1.Rb8?
- threat
- 2.Rd8#
- 1...Rg1+
- 2.Qxg1#
- 1...Rxa5
- 2.Rb4#
- 1...Rxg5
- 2.Qf4#
- 1...d2!
- threat
- 1.Qe1?
- threat
- 2.Sf3#
- 2.Se6#
- 2.Qf2#
- 2.Qe5#
- 1...Rg1+
- 2.Qxg1#
- 1...Rxa5
- 2.Rb4#
- 1...Rxg5
- 2.Qe5#
- 1...Rg2
- 2.Sf3#
- 2.Se6#
- 2.Qe4#
- 2.Qe5#
- 1...Rg3
- 2.Se6#
- 2.Qe4#
- 2.Qe5#
- 1...Re4
- 2.Sf3#
- 2.Qxe4#
- 1...Rf4
- 2.Se6#
- 2.Qe5#
- 1...dxc2!
- threat
- 1.Qf1?
- threat
- 2.Qxd3#
- 2.Qf2#
- 1...Rg1+
- 2.Qxg1#
- 1...Ke3
- 2.Qxd3#
- 2.Qf2#
- 1...Rxa5
- 2.Qxd3#
- 1...Rxg5
- 2.Qxd3#
- 2.Qf4#
- 1...Rg2
- 2.Qxd3#
- 2.Qf4#
- 1...Rg3
- 2.Qf4#
- 1...Re4
- 2.Qxd3#
- 1...Rf4
- 2.Qxd3#
- 2.Qxf4#
- 1...d2
- 2.Qd3#
- 2.Qf2#
- 1...dxc2!
- threat
- 1.c7?
- threat
- 2.Rd6#
- 1...Rg1+
- 2.Qxg1#
- 1...Rxa5
- 2.Rb4#
- 1...Rxg5
- 2.Qf4#
- 1...d2!
- threat
- 1.Rb7?
- Keys
- 1.Bb2!
- 1...Rg1+
- 2.Qxg1#
- 1...Rxa5
- 2.Rb4#
- 1...Rxg5
- 2.Qf4#
- 1...cxb2
- 2.c3#
- 1...dxc2
- 2.Qd2#
- 1...d2
- 2.Qxd2#
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb3#
- 1...Rg2
- 2.Qf4#
- 1...Rg3
- 2.Qf4#
- 1...Re4
- 2.Sf3#
- 1...Rf4
- 2.Qxf4#
- 1...Rh4
- 2.Qg1#
- 1...Rg1+
- 1.Bb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD,XB(E)::R(J)
- R(c);N_GUARD::R(J),XR(c)
- R(c);SBLOCK::S(F)
- R(c);N_GUARD,XS(F)::R(J)
- R(e);CHECK,N_GUARD::QAB(A),XR(e)
- R(e);N_GUARD::QAR2(A)
- R(e);SBLOCK::S(I)
- R(e);N_GUARD::QAR2(A),XR(e)
- R(e);N_GUARD,P_PINP(D)::QAB(A)
- R(e);N_GUARD,XS(I)::QAR2(A)
- Tries
- Try
- R(J);
- Threat
- R(J)
- Vars
- R(e);CHECK,N_GUARD::QAB(A),XR(e)
- R(c);N_GUARD,XS(F)::R(J)
- R(e);N_GUARD,XS(I)::QAR2(A)
- Refutation
- P(b);
- Try
- R(J);
- Threat
- R(J)
- Vars
- R(e);CHECK,N_GUARD::QAB(A),XR(e)
- R(c);N_GUARD,XS(F)::R(J)
- R(e);N_GUARD,XS(I)::QAR2(A)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(e);CHECK,N_GUARD::QAB(A),XR(e)
- R(c);N_GUARD,XS(F)::R(J)
- R(e);XS(I)::QAB1(A)
- Refutation
- P(b);XP(C)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,N_GUARD::QAB(A),XR(e)
- R(c);XS(F)::QAR1(A),XP(b)
- R(e);N_GUARD::QAR2(A)
- R(e);::QAR1(A),XP(b)
- Refutation
- P(b);XP(C)
- Try
- P(K);
- Threat
- R(J)
- Vars
- R(e);CHECK,N_GUARD::QAB(A),XR(e)
- R(c);N_GUARD,XS(F)::R(J)
- R(e);N_GUARD,XS(I)::QAR2(A)
- Refutation
- P(b);
- Try
- Actual
- B(E);P_PINP(a)
- Vars
- R(e);CHECK,N_GUARD::QAB(A),XR(e)
- R(c);N_GUARD,XS(F)::R(J)
- R(e);N_GUARD,XS(I)::QAR2(A)
- P(a);N_SPINP(a),OGATE,XB(E)::P(C)
- P(b);OGATEB,XP(C)::QAR2(A)
- P(b);OGATEB::QAR2(A),XP(b)
- R(c);N_GUARD,P_PINQ(A)::R(J)
- R(c);N_GUARD::R(J)
- R(c);N_GUARD::R(J),XR(c)
- R(c);SBLOCK::S(F)
- R(e);N_GUARD::QAR2(A)
- R(e);SBLOCK::S(I)
- R(e);N_GUARD::QAR2(A),XR(e)
- R(e);N_GUARD,P_PINP(D)::QAB(A)
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