MESON Chess Problem Database
Problem Display
PID: 9860 (8/K7/2p5/1R6/kB6/3Q4/8/1r6 w - - 0 1)
Speckmann, Werner
Deutsche Schachzeitung, 1960
#2
4 + 3
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
| 5454 | Near Snap | 2009 |
SOLUTION
- SOUND
- Sets
- 1...cxb5
- 2.Qa3#
- 1...cxb5
- Tries
- 1.Ka6?
- threat
- 2.Qa3#
- 1...Rxb4
- 2.Ra5#
- 1...Ra1
- 2.Qc2#
- 1...Rb3!
- threat
- 1.Rb7?
- threat
- 2.Qa3#
- 1...Rb3
- 2.Qa6#
- 1...Ra1
- 2.Qc2#
- 1...Rxb4!
- threat
- 1.Rb8?
- threat
- 2.Qa3#
- 1...Rb3
- 2.Qa6#
- 1...Ra1
- 2.Qc2#
- 1...Rxb4!
- threat
- 1.Qc4?
- threat
- 2.Ra5#
- 1...Rxb4
- 2.Qxb4#
- 1...cxb5!
- threat
- 1.Qc3?
- threat
- 2.Ra5#
- 1...Rxb4
- 2.Qxb4#
- 1...cxb5
- 2.Qa3#
- 1...Kxb5!
- threat
- 1.Ka6?
- Keys
- 1.Rb6!
- threat
- 2.Qa3#
- 1...Rxb4
- 2.Ra6#
- 1...Rb3
- 2.Qa6#
- 1...Ra1
- 2.Qc2#
- threat
- 1.Rb6!
This anticipates 47657(1998)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(c);SBLOCK,XR(C)::QAR1(A)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- QAR1(A)
- Vars
- R(a);SBLOCK,XB(B)::R1(C)
- R(a);N_GUARD::QAB(A)
- Refutation
- R(a);
- Try
- R(C);
- Threat
- QAR1(A)
- Vars
- R(a);SBLOCK::QAR2(A)
- R(a);N_GUARD::QAB(A)
- Refutation
- R(a);XB(B)
- Try
- R(C);
- Threat
- QAR1(A)
- Vars
- R(a);SBLOCK::QAR2(A)
- R(a);N_GUARD::QAB(A)
- Refutation
- R(a);XB(B)
- Try
- Q(A);
- Threat
- R1(C)
- Vars
- R(a);OGATE,P_SPINR(a),XB(B)::QAR1(A),XR(a)
- Refutation
- P(c);XR(C)
- Try
- Q(A);
- Threat
- R1(C)
- Vars
- R(a);OGATE,XB(B)::QAR1(A),XR(a)
- P(c);SBLOCK,XR(C)::QAR1(A)
- Refutation
- K(b);S_FLIGHT,XR(C)
- Try
- Actual
- R(C);
- Threat
- QAR1(A)
- Vars
- R(a);SBLOCK,XB(B)::R(C)
- R(a);SBLOCK::QAR2(A)
- R(a);N_GUARD::QAB(A)
Developed and maintained by Brian Stephenson.
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