MESON Chess Problem Database
Problem Display
PID: 248656 (4r2r/1p4Nb/N7/2R5/3kP2Q/2R5/7n/3K2b1 w - - 0 1)
Leroy, Dominique
Het Belgisch Schaakbord (L'Echiquier Belge), 2002
#2
7 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxe4
- 2.Se6#
- 1...Re5
- 2.R5c4#
- 1...Re6
- 2.Sxe6#
- 1...Ra8
- 2.Se6#
- 1...Rb8
- 2.Se6#
- 1...Rc8
- 2.Se6#
- 1...Rd8
- 2.Se6#
- 1...Ref8
- 2.Se6#
- 1...Reg8
- 2.Se6#
- 1...Bxe4
- 2.Sf5#
- 1...Bf5
- 2.Sxf5#
- 1...Bg8
- 2.Sf5#
- 1...Rxe4
- Tries
- 1.Kc2?
- threat
- 2.Rd3#
- 2.Rd5#
- 1...Bxe4+
- 2.Rd3#
- 1...Rxe4
- 2.Se6#
- 2.Rd3#
- 1...bxa6
- 2.Rd5#
- 1...Re5
- 2.Rd3#
- 2.R5c4#
- 1...Rd8
- 2.Se6#
- 2.Rd3#
- 1...Bg8
- 2.Sf5#
- 2.Rd3#
- 1...Sg4!
- threat
- 1.Ke2?
- threat
- 2.Rd3#
- 2.R3c4#
- 1...bxa6
- 2.R3c4#
- 1...Sg4
- 2.R3c4#
- 1...Bg8
- 2.Sf5#
- 2.Rd3#
- 1...b5
- 2.Rd3#
- 1...Rxe4+!
- threat
- 1.Sc7?
- threat
- 2.Sb5#
- 1...b5
- 2.Sxb5#
- 1...Sg4!
- threat
- 1.Qg3?
- threat
- 2.R3c4#
- 2.R5c4#
- 2.Qd3#
- 1...Rxe4
- 2.Rd3#
- 2.R3c4#
- 2.Qd6#
- 2.Qd3#
- 1...Bxe4
- 2.R3c4#
- 2.Qxg1#
- 1...Rc8
- 2.R3c4#
- 2.Qe5#
- 2.Qd3#
- 1...Be3
- 2.R5c4#
- 2.Qxe3#
- 1...Bg8
- 2.Qd3#
- 1...Sf3
- 2.R5c4#
- 1...b5
- 2.Qd3#
- 1...Kxe4!
- threat
- 1.Qf6+?
- 1...Re5
- 2.R5c4#
- 2.Qxe5#
- 1...Kxe4!
- 1...Re5
- 1.Qf4?
- threat
- 2.R5c4#
- 1...Rxe4
- 2.Se6#
- 2.Qd2#
- 2.Qd6#
- 1...Bxe4
- 2.Sf5#
- 1...Rc8
- 2.Se6#
- 2.Qe5#
- 1...Bg8
- 2.Sf5#
- 2.e5#
- 1...b5!
- threat
- 1.e5+?
- 1...Be4
- 2.Sf5#
- 1...Sg4!
- 1...Be4
- 1.Kc2?
- Keys
- 1.Qe1!
- threat
- 2.Rd5#
- 1...Rxe4
- 2.Qd2#
- 1...Bxe4
- 2.Qxg1#
- 1...Be3
- 2.Qxe3#
- 1...Re5
- 2.R5c4#
- 1...Rd8
- 2.Se6#
- 1...Bg8
- 2.Sf5#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(f);N_GUARD,P_SPINR(f),XP(C)::S(G)
- R(f);SBLOCK::R1(E)
- R(f);N_GUARD::S(G),XR(f)
- R(f);N_GUARD::S(G)
- B(e);N_GUARD,P_SPINB(e),XP(C)::S(G)
- B(e);N_GUARD::S(G),XB(e)
- B(e);N_GUARD::S(G)
- Tries
- Try
- K(A);P_SPINP(C),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,P_SPINB(e),XP(C)::R1(B)
- P(d);XS(F)::R1(E)
- Refutation
- S(b);
- Try
- K(A);P_SPINP(C),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- P(d);XS(F)::R1(B)
- S(b);::R1(B)
- P(d);::R1(B)
- Refutation
- R(f);CHECK,P_SPINR(f),XP(C)
- Try
- S(F);
- Threat
- S(F)
- Vars
- P(d);::S(F),XP(d)
- Refutation
- S(b);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- B(e);::QAR1(D)
- S(b);::R1(E)
- P(d);::QAR1(D)
- Refutation
- K(c);P-FLIGHT,XP(C)
- Try
- Q(D);CHECK
- Refutation
- K(c);P-FLIGHT,XP(C)
- Try
- Q(D);
- Threat
- R1(E)
- Vars
- B(e);N_GUARD,P_SPINB(e),XP(C)::S(G)
- Refutation
- P(d);
- Try
- P(C);CHECK
- Vars
- B(e);P_SPINB(e)::S(G)
- Refutation
- S(b);P_SPINS(b)
- Try
- Actual
- Q(D);
- Threat
- R1(E)
- Vars
- R(f);SBLOCK,XP(C)::QAR2(D)
- B(e);SBLOCK,XP(C)::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- R(f);SBLOCK::R1(E)
- R(f);N_GUARD::S(G)
- B(e);N_GUARD::S(G)
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).