MESON Chess Problem Database
Problem Display
PID: 238298 (3RR2B/3N1pr1/1p5r/3b1p1p/1KpkP1Q1/4pP2/BPP5/8 w - - 0 1)
Segers, Marcel
Schach, 1990
#2
11 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxe4
- 2.Sf6#
- 1...e2
- 2.Qg1#
- 1...c3
- 2.bxc3#
- 1...Bxe4
- Tries
- 1.Sc5?
- threat
- 2.Rxd5#
- 2.c3#
- 1...fxe4
- 2.Rxe4#
- 2.Qxe4#
- 2.c3#
- 1...Re6
- 2.Rxd5#
- 1...e2
- 2.Qg1#
- 1...Rd6
- 2.c3#
- 1...c3
- 2.Sb3#
- 2.Rxd5#
- 2.bxc3#
- 1...bxc5+!
- threat
- 1.Se5?
- threat
- 2.Rxd5#
- 2.c3#
- 1...fxe4
- 2.Qxe4#
- 2.c3#
- 1...Re6
- 2.Rxd5#
- 1...Rd6
- 2.c3#
- 1...c3
- 2.Rxd5#
- 2.bxc3#
- 1...e2!
- threat
- 1.Sb8?
- threat
- 2.Rxd5#
- 1...fxe4
- 2.Rxe4#
- 2.Qxe4#
- 1...e2
- 2.Qg1#
- 1...Rd6!
- threat
- 1.Sf8?
- threat
- 2.Rxd5#
- 1...fxe4
- 2.Rxe4#
- 2.Qxe4#
- 1...e2
- 2.Qg1#
- 1...Rd6!
- threat
- 1.Bxc4?
- threat
- 2.c3#
- 1...e2
- 2.Qg1#
- 1...Bxc4!
- threat
- 1.Bxg7+?
- 1...Rf6
- 2.Bxf6#
- 1...f6!
- 1...Rf6
- 1.Qxf5?
- threat
- 2.Qxd5#
- 2.Qe5#
- 1...Bxe4
- 2.Rxe4#
- 2.Qxe4#
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Re6
- 2.Qxd5#
- 1...Bc6
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qe5#
- 1...Ba8
- 2.Qe5#
- 1...f6
- 2.Qxd5#
- 1...e2!
- threat
- 1.Qxg7+?
- 1...Rf6
- 2.Qxf6#
- 1...f6!
- 1...Rf6
- 1.exf5+?
- 1...Be4
- 2.Sf6#
- 2.Qxe4#
- 1...hxg4!
- 1...Be4
- 1.Sc5?
- Keys
- 1.Bb1!
- threat
- 2.c3#
- 1...Bxe4
- 2.Sf6#
- 1...e2
- 2.Qg1#
- 1...c3
- 2.bxc3#
- threat
- 1.Bb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(d);P_SPINB(d),XP(F)::R(I)+S(H)
- P(a);OGATEB::QAB(G)
- P(b);OGATE::P(B),XP(b)
- Tries
- Try
- S(H);P_PINB(d)
- Threat
- DUALS(2)
- Vars
- R(h);::R1(I),XB(d)
- P(a);OGATEB::QAB(G)
- R(h);N_SPINB(d)::P(C)
- Refutation
- P(g);CHECK,XS(H)
- Try
- S(H);N_PINR(j),P_PINB(d)
- Threat
- DUALS(2)
- Vars
- R(h);::R1(I),XB(d)
- R(h);N_SPINB(d)::P(C)
- Refutation
- P(a);
- Try
- S(H);P_PINB(d)
- Threat
- R1(I),XB(d)
- Vars
- P(a);OGATEB::QAB(G)
- Refutation
- R(h);N_SPINB(d)
- Try
- S(H);P_PINB(d)
- Threat
- R1(I),XB(d)
- Vars
- P(a);OGATEB::QAB(G)
- Refutation
- R(h);N_SPINB(d)
- Try
- B(A);XP(b)
- Threat
- P(C)
- Vars
- P(a);OGATEB::QAB(G)
- Refutation
- B(d);XB(A)
- Try
- B(K);CHECK,XR(j)
- Vars
- R(h);N_GUARD,P_SPINR(h)::B(K),XR(h)
- Refutation
- P(i);P_SPINP(i)
- Try
- Q(G);XP(e)
- Threat
- DUALS(2)
- Vars
- R(h);::QAB1(G)
- R(h);::QAR1(G),XB(d)
- B(d);::QAB1(G)
- P(i);N_SPINR(j)::QAR1(G),XB(d)
- Refutation
- P(a);
- Try
- Q(G);CHECK,XR(j)
- Vars
- R(h);N_GUARD,P_SPINR(h)::QAB(G),XR(h)
- Refutation
- P(i);P_SPINP(i)
- Try
- P(F);CHECK,XP(e)
- Refutation
- P(f);XQ(G)
- Try
- Actual
- B(A);
- Threat
- P(C)
- Vars
- B(d);P_SPINB(d),XP(F)::R(I)+S(H)
- P(a);OGATEB::QAB(G)
- P(b);OGATE::P(B),XP(b)
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).