MESON Chess Problem Database
Problem Display
PID: 235200 (2bR4/2Kn2p1/1p6/pP6/RP1k1B2/2p1N1b1/2BP3Q/8 w - - 0 1)
Heyl, Peter
Schach, 2002
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Be5#
- 1...Bf2
- 2.Be5#
- 1...Bxf4+
- 2.Qxf4#
- 1...Bh4
- 2.Be5#
- 1...Ba6
- 2.Rxd7#
- 1...cxd2
- 2.Qxd2#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...Be1
- Tries
- 1.Kc6?
- threat
- 2.bxa5#
- 1...Bxf4
- 2.Qxf4#
- 1...cxd2
- 2.Qxd2#
- 1...axb4
- 2.Rxb4#
- 1...Bb7+!
- threat
- 1.Kd6?
- threat
- 2.bxa5#
- 1...Bxf4+
- 2.Qxf4#
- 1...cxd2
- 2.Qxd2#
- 1...axb4
- 2.Rxb4#
- 1...Sc5
- 2.bxc5#
- 1...Se5!
- threat
- 1.Kxc8?
- threat
- 2.Rxd7#
- 1...Bxf4
- 2.Qxf4#
- 1...cxd2
- 2.Qxd2#
- 1...axb4!
- threat
- 1.Bxg3?
- threat
- 2.Be5#
- 2.Qh4#
- 1...cxd2
- 2.Qxd2#
- 1...Bb7
- 2.Be5#
- 1...g5
- 2.Be5#
- 2.Qh8#
- 1...axb4!
- threat
- 1.Ra3?
- threat
- 2.dxc3#
- 1...Bxf4+
- 2.Qxf4#
- 1...cxd2
- 2.Qxd2#
- 1...Be1
- 2.Be5#
- 1...axb4!
- threat
- 1.Qxg3?
- threat
- 2.Be5#
- 2.Qxg7#
- 1...g5
- 2.Be5#
- 1...g6
- 2.Be5#
- 1...axb4!
- threat
- 1.Qe2?
- threat
- 2.Qd3#
- 2.Qc4#
- 1...axb4
- 2.Qc4#
- 1...Bxf4+!
- threat
- 1.Qh5?
- threat
- 2.Qd5#
- 2.Qe5#
- 2.bxa5#
- 1...cxd2
- 2.Qe5#
- 1...axb4
- 2.Rxb4#
- 2.Qd5#
- 2.Qe5#
- 1...Bb7
- 2.Qe5#
- 2.bxa5#
- 1...g5
- 2.Qh8#
- 1...Bxf4+!
- threat
- 1.Qh6?
- threat
- 2.Qxg7#
- 2.Qxb6#
- 2.Qd6#
- 1...Bxf4+
- 2.Qxf4#
- 1...cxd2
- 2.Qxg7#
- 1...axb4
- 2.Qxb6#
- 2.Qd6#
- 1...Bb7
- 2.Qxg7#
- 2.Qxb6#
- 1...Bh4
- 2.Qxb6#
- 2.Qd6#
- 1...g5
- 2.Qg7#
- 2.Qxb6#
- 2.Qd6#
- 2.Qf6#
- 2.Qh8#
- 1...g6
- 2.Qg7#
- 2.Qh8#
- 1...gxh6!
- threat
- 1.Kc6?
- Keys
- 1.Bd6!
- threat
- 2.bxa5#
- 1...Bxd6+
- 2.Qxd6#
- 1...cxd2
- 2.Qxd2#
- 1...axb4
- 2.Rxb4#
- 1...Sc5
- 2.bxc5#
- 1...Se5
- 2.Bc5#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- B(b);N_GUARD,N_PINB(G)::B(G)
- B(b);CHECK,OGATE,XB(G)::QAR2(C),XB(b)
- B(h);N_GUARD::R(J),XS(f)
- P(a);OGATE,XP(B)::QAR2(C),XP(a)
- P(g);OGATEB::QAB(C)
- Tries
- Try
- K(I);N_SPINB(G),P-FLIGHT
- Threat
- R(E)+P(F),XP(d)
- Vars
- B(b);OGATE,XB(G)::QAR2(C),XB(b)
- P(a);OGATE,XP(B)::QAR2(C),XP(a)
- P(d);OGATE,P_SPINP(d),XP(F)::R(E),XP(d)
- Refutation
- B(h);CHECK
- Try
- K(I);N_PINS(f),S_FLIGHT
- Threat
- R(E)+P(F),XP(d)
- Vars
- B(b);CHECK,OGATE,XB(G)::QAR2(C),XB(b)
- P(a);OGATE,XP(B)::QAR2(C),XP(a)
- P(d);OGATE,P_SPINP(d),XP(F)::R(E),XP(d)
- S(f);OGATE::R(E)+P(F),XS(f)
- Refutation
- S(f);N_PINB(G)
- Try
- K(I);N_SPINB(G),P-FLIGHT,XB(h)
- Threat
- R(J),XS(f)
- Vars
- B(b);OGATE,XB(G)::QAR2(C),XB(b)
- P(a);OGATE,XP(B)::QAR2(C),XP(a)
- Refutation
- P(d);P_SPINP(d),XP(F)
- Try
- B(G);N_SPINB(G),XB(b)
- Threat
- DUALS(2)
- Vars
- P(a);OGATE,XP(B)::QAR2(C),XP(a)
- B(h);::B(G)
- Refutation
- P(d);P_SPINP(d),XP(F)
- Try
- R(E);
- Threat
- P(B),XP(a)
- Vars
- B(b);CHECK,OGATE,XB(G)::QAR2(C),XB(b)
- P(a);OGATE,XP(B)::QAR2(C),XP(a)
- B(b);N_GUARD,N_PINB(G)::B(G)
- Refutation
- P(d);XP(F)
- Try
- Q(C);N_SPINB(G),XB(b)
- Threat
- DUALS(2)
- Vars
- P(g);::B(G)
- Refutation
- P(d);P_SPINP(d),XP(F)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(d);P_SPINP(d),XP(F)::QAR1(C)
- Refutation
- B(b);CHECK,XB(G)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- P(a);XP(B)::QAB1(C)
- P(g);OGATEB::QAB(C)
- Refutation
- B(b);CHECK,XB(G)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- B(b);CHECK,OGATE,XB(G)::QAR2(C),XB(b)
- P(a);XP(B)::QAB(C),XP(g)
- Refutation
- P(g);XQ(C)
- Try
- Actual
- B(G);N_PINS(f)
- Threat
- R(E)+P(F),XP(d)
- Vars
- B(b);CHECK,OGATE,XB(G)::QAR2(C),XB(b)
- P(a);OGATE,XP(B)::QAR2(C),XP(a)
- P(d);OGATE,P_SPINP(d),XP(F)::R(E),XP(d)
- S(f);OGATE::R(E)+P(F),XS(f)
- S(f);N_PINB(G),SBLOCK::R(J)+B(G),DCHECK
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).