MESON Chess Problem Database
Problem Display
PID: 263081 (1B6/4pp2/4Pp1K/4RP2/2p1PkN1/2P2Bp1/2Nr2P1/1r3R2 w - - 0 1)
Doukhan, Gerard
2nd Comm., SuperProblem, 2020
#2
12 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rd5#
- 1...Rc1
- 2.Rd5#
- 1...Rbd1
- 2.Rd5#
- 1...Re1
- 2.Rd5#
- 1...Rxf1
- 2.Rd5#
- 1...Rb2
- 2.Be2#
- 1...Rb3
- 2.Be2#
- 1...Rb4
- 2.Be2#
- 1...Rb5
- 2.Be2#
- 1...Rb6
- 2.Be2#
- 1...Rb7
- 2.Be2#
- 1...Rxb8
- 2.Be2#
- 1...Rdd1
- 2.Bxd1#
- 1...Rxc2
- 2.Rb5#
- 1...Re2
- 2.Rb5#
- 1...Rf2
- 2.Rb5#
- 1...Rxg2
- 2.Rb5#
- 1...Rd4
- 2.Bd1#
- 1...Rd5
- 2.Bd1#
- 1...Rd6
- 2.Bd1#
- 1...Rd7
- 2.Bd1#
- 1...Rd8
- 2.Bd1#
- 1...fxe5
- 2.Bxe5#
- 1...Ra1
- Tries
- 1.Se1?
- threat
- 2.Be2#
- 1...Rxe1
- 2.Rd5#
- 1...Rxg2
- 2.Sxg2#
- 2.Rb5#
- 1...fxe5
- 2.Bxe5#
- 1...Re2
- 2.Bxe2#
- 2.Rb5#
- 1...Rf2
- 2.Rb5#
- 1...Rd3!
- threat
- 1.Sce3?
- 1...Rxf1
- 2.Rd5#
- 1...Rxb8
- 2.Be2#
- 1...Rxg2
- 2.Sxg2#
- 2.Sd5#
- 2.Rb5#
- 1...fxe5
- 2.Bxe5#
- 1...Rd3
- 2.Bd1#
- 1...Ra1
- 2.Rd5#
- 1...Rc1
- 2.Rd5#
- 1...Rbd1
- 2.Rd5#
- 1...Re1
- 2.Rd5#
- 1...Rbb2
- 2.Be2#
- 1...Rb3
- 2.Be2#
- 1...Rb4
- 2.Be2#
- 1...Rb5
- 2.Be2#
- 1...Rb6
- 2.Be2#
- 1...Rb7
- 2.Be2#
- 1...Rdd1
- 2.Bxd1#
- 1...Ra2
- 2.Sd5#
- 2.Rb5#
- 1...Rdb2
- 2.Sd5#
- 2.Rb5#
- 1...Rc2
- 2.Sd5#
- 2.Rb5#
- 1...Re2
- 2.Sd5#
- 2.Rb5#
- 1...Rf2
- 2.Sd5#
- 2.Rb5#
- 1...Rd4
- 2.Bd1#
- 1...Rd5
- 2.Sxd5#
- 2.Bd1#
- 1...Rd6
- 2.Bd1#
- 1...Rd7
- 2.Bd1#
- 1...Rd8
- 2.Bd1#
- 1...fxe6!
- 1...Rxf1
- 1.Sb4?
- threat
- 2.Rd5#
- 1...Rxb4
- 2.Be2#
- 1...fxe5
- 2.Bxe5#
- 1...Rd5
- 2.Sxd5#
- 2.Bd1#
- 2.Rxd5#
- 1...Rd6
- 2.Bd1#
- 1...Rd7
- 2.Bd1#
- 1...Rd8
- 2.Bd1#
- 1...fxe6!
- threat
- 1.Bc7?
- threat
- 2.Rd5#
- 1...fxe5
- 2.Bxe5#
- 1...Rb6
- 2.Be2#
- 1...Rb7
- 2.Be2#
- 1...Rd5
- 2.Bd1#
- 2.Rxd5#
- 1...Rd6
- 2.Bd1#
- 1...Rd7
- 2.Bd1#
- 1...Rd8
- 2.Bd1#
- 1...fxe6!
- threat
- 1.Se1?
- Keys
- 1.Sd4!
- threat
- 2.Rb5#
- 1...Rxb8
- 2.Be2#
- 1...Rxd4
- 2.Bd1#
- 1...fxe5
- 2.Bxe5#
- 1...fxe6
- 2.Sxe6#
- 1...Rb5
- 2.Be2#
- 2.Rxb5#
- 1...Rb6
- 2.Be2#
- 1...Rb7
- 2.Be2#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 18
- Sets
- R(a);N_GUARD::B(L)+R(H)
- R(a);N_GUARD,XR(A)::B(L)+R(H)
- R(a);N_GUARD::R(A)+B(E)
- R(a);N_GUARD,XB(L)::R(A)+B(E)
- R(b);N_GUARD::R(A)+B(E),XR(b)
- R(b);N_GUARD,XS(B)::B(L)+R(H)
- R(b);N_GUARD::B(L)+R(H)
- R(b);N_GUARD,XP(C)::B(L)+R(H)
- R(b);N_GUARD::R(A)+B(E)
- P(f);OGATE,P_SPINP(f),XR(H)::B(L),XP(f)
- Tries
- Try
- S(B);
- Threat
- R(A)+B(E)
- Vars
- R(a);N_GUARD,XS(B)::B(L)+R(H)
- P(f);OGATE,P_SPINP(f),XR(H)::B(L),XP(f)
- R(b);N_GUARD::B(L)+R(H)
- Refutation
- R(b);
- Try
- S(B);
- Vars
- R(a);N_GUARD,XR(A)::B(L)+R(H)
- R(a);N_GUARD,XB(L)::R(A)+B(E)
- P(f);OGATE,P_SPINP(f),XR(H)::B(L),XP(f)
- R(b);N_GUARD::R(A)+B(E)
- R(a);N_GUARD::B(L)+R(H)
- R(a);N_GUARD::R(A)+B(E)
- R(b);N_GUARD::R(A)+B(E),XR(b)
- Refutation
- P(h);XP(J)
- Try
- S(B);
- Threat
- B(L)+R(H)
- Vars
- R(a);N_GUARD,XS(B)::R(A)+B(E)
- P(f);OGATE,P_SPINP(f),XR(H)::B(L),XP(f)
- R(b);N_GUARD::R(A)+B(E)
- Refutation
- P(h);XP(J)
- Try
- B(L);
- Threat
- B(L)+R(H)
- Vars
- P(f);OGATE,P_SPINP(f),XR(H)::B(L),XP(f)
- R(a);N_GUARD::R(A)+B(E)
- R(b);N_GUARD::R(A)+B(E)
- Refutation
- P(h);XP(J)
- Try
- Actual
- S(B);
- Threat
- B(L)+R(H)
- Vars
- R(a);N_GUARD,XB(L)::R(A)+B(E)
- R(b);N_GUARD,XS(B)::R(A)+B(E)
- P(f);OGATE,P_SPINP(f),XR(H)::B(L),XP(f)
- P(h);XP(J)::S(B),XP(h)
- R(a);N_GUARD::R(A)+B(E)
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).