MESON Chess Problem Database
Problem Display
PID: 248653 (2r5/np1r4/4P1B1/3N2B1/1QPk1pNq/1P1p1Rbp/1K6/2n5 w - - 0 1)
Leroy, Dominique
Het Belgisch Schaakbord (L'Echiquier Belge), 2001
#2
10 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxg4
- 2.Bf6#
- 1...Qh6
- 2.Bf6#
- 1...Qh7
- 2.Bf6#
- 1...Rxd5
- 2.c5#
- 1...Rxc4
- 2.Qxc4#
- 1...Rc5
- 2.Qc3#
- 1...Ra8
- 2.Qb6#
- 1...Rb8
- 2.Qb6#
- 1...Rd8
- 2.Qb6#
- 1...Re8
- 2.Qb6#
- 1...Rf8
- 2.Qb6#
- 1...Rg8
- 2.Qb6#
- 1...Rh8
- 2.Qb6#
- 1...Be1
- 2.Rxf4#
- 1...Bf2
- 2.Rxf4#
- 1...Sa2
- 2.Rxd3#
- 1...Se2
- 2.Rxd3#
- 1...Sxb3
- 2.Rxd3#
- 1...Sc6
- 2.Qb6#
- 1...Qxg4
- Tries
- 1.Kxc1?
- threat
- 2.Rxd3#
- 1...Rxc4+
- 2.Qxc4#
- 1...Qxg4
- 2.Bf6#
- 1...d2+!
- threat
- 1.Sc3?
- threat
- 2.c5#
- 1...Qxg4
- 2.Bf6#
- 1...Rxc4
- 2.Qxc4#
- 1...Sa2
- 2.Rxd3#
- 1...Sc6
- 2.Sb5#
- 2.Qb6#
- 1...Rc5!
- threat
- 1.Sde3?
- threat
- 2.c5#
- 1...Qxg4
- 2.Bf6#
- 1...Rxc4
- 2.Qxc4#
- 1...fxe3
- 2.Bxe3#
- 1...Rc5
- 2.Qc3#
- 1...Be1
- 2.Rxf4#
- 1...Sc6
- 2.Qb6#
- 1...Sa2!
- threat
- 1.Sxf4?
- threat
- 2.c5#
- 1...Qxg4
- 2.Bf6#
- 1...Rxc4
- 2.Qxc4#
- 1...Bxf4
- 2.Rxf4#
- 1...Rc5
- 2.Qc3#
- 1...Sa2
- 2.Rxd3#
- 1...Sc6
- 2.Qb6#
- 1...Be1!
- threat
- 1.Sb6?
- threat
- 2.c5#
- 1...Qxg4
- 2.Bf6#
- 1...Rxc4
- 2.Qxc4#
- 1...Rc5
- 2.Qc3#
- 1...Be1
- 2.Rxf4#
- 1...Sa2
- 2.Rxd3#
- 1...Sc6!
- threat
- 1.Sdf6?
- threat
- 2.c5#
- 1...Rxc4
- 2.Qxc4#
- 1...Rc5
- 2.Qc3#
- 1...Be1
- 2.Rxf4#
- 1...Sa2
- 2.Rxd3#
- 1...Sc6
- 2.Qb6#
- 1...Qxg4!
- threat
- 1.Sc7?
- threat
- 2.Qb6#
- 2.c5#
- 1...Qxg5
- 2.c5#
- 1...Qxg4
- 2.Bf6#
- 1...Rdxc7
- 2.Qd6#
- 1...Sxb3
- 2.Rxd3#
- 2.c5#
- 1...Rd5
- 2.cxd5#
- 2.c5#
- 1...Rd6
- 2.Qxd6#
- 2.c5#
- 1...Be1
- 2.Rxf4#
- 2.Qb6#
- 1...Sa2
- 2.Rxd3#
- 2.Qb6#
- 1...Sb5
- 2.Sxb5#
- 2.cxb5#
- 2.c5#
- 1...Sc6
- 2.Sb5#
- 2.Qb6#
- 1...b5
- 2.cxb5#
- 2.c5#
- 1...b6
- 2.Qxb6#
- 2.c5#
- 1...Rcxc7!
- threat
- 1.Bxh4?
- threat
- 2.Bf6#
- 1...Rxd5
- 2.c5#
- 1...Rxc4
- 2.Qxc4#
- 1...Bxh4
- 2.Rxf4#
- 1...Rf8
- 2.Qb6#
- 1...Sc6
- 2.Qb6#
- 1...Rf7!
- threat
- 1.Re3?
- threat
- 2.Re4#
- 1...Rxc4
- 2.Qxc4#
- 1...fxe3
- 2.Bxe3#
- 1...d2!
- threat
- 1.Kxc1?
- Keys
- 1.Se7!
- threat
- 2.c5#
- 1...Qxg4
- 2.Bf6#
- 1...Rxe7
- 2.Qd6#
- 1...Rxc4
- 2.Qxc4#
- 1...Rc5
- 2.Qc3#
- 1...Be1
- 2.Rxf4#
- 1...Sa2
- 2.Rxd3#
- 1...Sc6
- 2.Qb6#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- Q(g);N_GUARD,XS(F)::B(H)
- Q(g);N_GUARD::B(H)
- R(j);SBLOCK,XS(G)::QAR(D)+P(E)
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- R(k);SBLOCK::QAB1(D)
- R(k);N_GUARD::QAB(D)
- B(c);N_GUARD::R(C),XP(f)
- S(a);N_GUARD::R1(C),XP(b)
- S(a);N_GUARD,XP(B)::R1(C),XP(b)
- S(h);S_CUTR(k)::QAB(D)
- Tries
- Try
- K(A);P_SPINP(E),S_FLIGHT,XS(a)
- Threat
- R1(C),XP(b)
- Vars
- R(k);CHECK,OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- Q(g);N_GUARD,XS(F)::B(H)
- Refutation
- P(b);CHECK
- Try
- S(G);
- Threat
- QAR(D)+P(E)
- Vars
- Q(g);N_GUARD,XS(F)::B(H)
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- S(a);N_GUARD::R1(C),XP(b)
- Refutation
- R(k);
- Try
- S(G);
- Threat
- QAR(D)+P(E)
- Vars
- Q(g);N_GUARD,XS(F)::B(H)
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- P(f);OGATE,XS(G)::B(H),XP(f)
- R(k);SBLOCK::QAB1(D)
- B(c);N_GUARD::R(C),XP(f)
- S(h);S_CUTR(k)::QAB(D)
- Refutation
- S(a);
- Try
- S(G);XP(f)
- Threat
- QAR(D)+P(E)
- Vars
- Q(g);N_GUARD,XS(F)::B(H)
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- B(c);OGATE,XS(G)::R(C),XB(c)
- R(k);SBLOCK::QAB1(D)
- S(a);N_GUARD::R1(C),XP(b)
- S(h);S_CUTR(k)::QAB(D)
- Refutation
- B(c);
- Try
- S(G);
- Threat
- QAR(D)+P(E)
- Vars
- Q(g);N_GUARD,XS(F)::B(H)
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- R(k);SBLOCK::QAB1(D)
- B(c);N_GUARD::R(C),XP(f)
- S(a);N_GUARD::R1(C),XP(b)
- Refutation
- S(h);
- Try
- S(G);
- Threat
- QAR(D)+P(E)
- Vars
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- R(k);SBLOCK::QAB1(D)
- B(c);N_GUARD::R(C),XP(f)
- S(a);N_GUARD::R1(C),XP(b)
- S(h);S_CUTR(k)::QAB(D)
- Refutation
- Q(g);XS(F)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(g);XB(H)::QAR(D)+P(E)
- Q(g);N_GUARD,XS(F)::B(H)
- R(j);N_GUARD,XS(G)::QAR2(D)
- Refutation
- R(k);XS(G)
- Try
- B(H);XQ(g)
- Threat
- B(H)
- Vars
- R(j);SBLOCK,XS(G)::QAR(D)+P(E)
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- B(c);N_GUARD,XB(H)::R(C),XP(f)
- R(k);N_GUARD::QAB(D)
- S(h);S_CUTR(k)::QAB(D)
- Refutation
- R(j);
- Try
- R(C);
- Threat
- R1(C)
- Vars
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- P(f);OGATE,XR(C)::B(H),XP(f)
- Refutation
- P(b);
- Try
- Actual
- S(G);
- Threat
- QAR(D)+P(E)
- Vars
- Q(g);N_GUARD,XS(F)::B(H)
- R(j);N_GUARD,XS(G)::QAR2(D)
- R(k);OGATE,P_SPINR(k),XP(E)::QAR1(D),XR(k)
- R(k);SBLOCK::QAB1(D)
- B(c);N_GUARD::R(C),XP(f)
- S(a);N_GUARD::R1(C),XP(b)
- S(h);S_CUTR(k)::QAB(D)
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).