MESON Chess Problem Database
Problem Display
PID: 275569 (5q2/1p5p/4RB1k/5K1p/5NR1/8/3Q4/5r2 w - - 0 1)
Redlinger, L
Buletin Problemistic, 1976
#2
6 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qb4
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qc5+
- 2.Be5#
- 1...Qd6
- 2.Bg7#
- 1...Qe7
- 2.Bxe7#
- 2.Bg7#
- 1...Qg7
- 2.Bg5#
- 2.Bxg7#
- 1...Qxf6+
- 2.Rxf6#
- 1...Qa8
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qb8
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Be7#
- 2.Bg7#
- 2.Bxd8#
- 1...Qe8
- 2.Bg7#
- 1...Qg8
- 2.Bg7#
- 1...Qh8
- 2.Bg7#
- 2.Bxh8#
- 1...Ra1
- 2.Se2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sg6#
- 1...Rb1
- 2.Se2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sg6#
- 1...Rc1
- 2.Se2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sg6#
- 1...Re1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sg6#
- 1...Rh1
- 2.Se2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sg6#
- 1...Rxf4+
- 2.Qxf4#
- 1...hxg4
- 2.Qh2#
- 1...h4
- 2.Rxh4#
- 1...Qa3
- Tries
- 1.Qb4?
- threat
- 2.Qxf8#
- 1...Qc5+
- 2.Be5#
- 1...Qxf6+
- 2.Rxf6#
- 1...Rxf4+
- 2.Qxf4#
- 1...Qxb4
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qd6
- 2.Bg7#
- 1...Qe7
- 2.Bxe7#
- 2.Bg7#
- 1...Qg7
- 2.Bg5#
- 2.Bxg7#
- 1...Qa8
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qb8
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Be7#
- 2.Bg7#
- 2.Bxd8#
- 1...Qe8
- 2.Bg7#
- 1...Qg8
- 2.Bg7#
- 1...Qh8
- 2.Bg7#
- 2.Bxh8#
- 1...Qf7!
- threat
- 1.Qd6?
- threat
- 2.Qxf8#
- 1...Qxf6+
- 2.Rxf6#
- 1...Rxf4+
- 2.Qxf4#
- 1...Qxd6
- 2.Bg7#
- 1...Qe7
- 2.Bxe7#
- 2.Bg7#
- 1...Qg7
- 2.Bg5#
- 2.Bxg7#
- 1...Qa8
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qb8
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bh4#
- 2.Be5#
- 2.Be7#
- 2.Bg7#
- 2.Bd8#
- 2.Bh8#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Be7#
- 2.Bg7#
- 2.Bxd8#
- 1...Qe8
- 2.Bg7#
- 1...Qg8
- 2.Bg7#
- 1...Qh8
- 2.Bg7#
- 2.Bxh8#
- 1...Qf7!
- threat
- 1.Qb4?
- Keys
- 1.Ke4!
- threat
- 2.Bg7#
- 1...Qb4+
- 2.Bd4#
- 1...Re1+
- 2.Se2#
- 1...Rxf4+
- 2.Qxf4#
- 1...Qxf6
- 2.Rxf6#
- 1...hxg4
- 2.Qh2#
- 1...Qg7
- 2.Bg5#
- 2.Bxg7#
- threat
- 1.Ke4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(f);CHECK,N_PINB(F)::R(E)+B(F)
- Q(f);N_PINB(F)::R(E)+B(F),DCHECK
- Q(f);CHECK,OGATE,P_SPINQ(f),XB(F)::R(E),XQ(f)
- Q(f);N_PINB(F),P_PINR(E)::R(E)+B(F),DCHECK
- R(a);N_PINS(B)::QAB(A)+S(B)
- R(a);CHECK,OGATE,P_SPINR(a),XS(B)::QAB(A),XR(a)
- P(b);OGATEB,XR(C)::QAR(A)
- P(b);OGATEB::R(C),XP(b)
- Tries
- Try
- Q(A);
- Threat
- QAB(A),XQ(f)
- Vars
- Q(f);CHECK,N_PINB(F)::R(E)+B(F)
- Q(f);CHECK,OGATE,P_SPINQ(f),XB(F)::R(E),XQ(f)
- R(a);CHECK,OGATE,XS(B)::QAB(A),XR(a)
- Q(f);N_PINB(F)::R(E)+B(F),DCHECK
- Q(f);N_PINB(F),P_PINR(E)::R(E)+B(F),DCHECK
- Refutation
- Q(f);
- Try
- Q(A);
- Threat
- QAB(A),XQ(f)
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XB(F)::R(E),XQ(f)
- R(a);CHECK,OGATE,XS(B)::QAB(A),XR(a)
- Q(f);N_PINB(F),XQ(A)::R(E)+B(F),DCHECK
- Q(f);N_PINB(F),P_PINR(E)::R(E)+B(F),DCHECK
- Q(f);N_PINB(F)::R(E)+B(F),DCHECK
- Refutation
- Q(f);
- Try
- Actual
- K(D);N_SPINB(F),N_SPINS(B),S_FLIGHT
- Threat
- R(E)+B(F),DCHECK
- Vars
- Q(f);CHECK,N_GUARD::R(E)+B(F)
- R(a);CHECK,N_GUARD::QAB(A)+S(B)
- R(a);CHECK,OGATE,P_SPINR(a),XS(B)::QAB(A),XR(a)
- Q(f);OGATE,P_SPINQ(f),XB(F)::R(E),XQ(f)
- P(b);OGATEB,XR(C)::QAR(A)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).