MESON Chess Problem Database
Problem Display
PID: 223375 (1R6/2p5/K1P2p2/Nnk2p2/2pR1P2/2bP2p1/NB4P1/4Q3 w - - 0 1)
Coe, WR
Prize, Weekly Echo, 1885
#2
11 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxe1
- 2.Rxb5#
- 1...Bd2
- 2.Rxb5#
- 1...Bb4
- 2.Rxb5#
- 2.Qxb4#
- 1...Bxe1
- Tries
- 1.Sb3+?
- 1...Kxc6
- 2.Qe8#
- 1...cxb3!
- 1...Kxc6
- 1.Sb7+?
- 1...Kxc6
- 2.Qe8#
- 1...Kxd4!
- 1...Kxc6
- 1.Rxc4+?
- 1...Kd6
- 2.Rd8#
- 1...Kd5!
- 1...Kd6
- 1.Rbd8?
- threat
- 2.Rxc4#
- 2.R4d5#
- 2.R8d5#
- 1...Bxd4
- 2.Qb4#
- 1...Bxa5
- 2.Rxc4#
- 1...Sxd4
- 2.Qe7#
- 1...cxd3
- 2.Rc4#
- 2.R4d5#
- 2.R8d5#
- 1...Sa3
- 2.R4d5#
- 2.R8d5#
- 2.Qe7#
- 1...Sd6!
- threat
- 1.Qxc3?
- threat
- 2.Rxb5#
- 2.Qb4#
- 2.Qxc4#
- 1...Sxd4
- 2.Qxd4#
- 1...Sa3
- 2.Bxa3#
- 2.Qb4#
- 2.Qxa3#
- 1...Sd6
- 2.Ba3#
- 2.Qb4#
- 2.Qa3#
- 1...Sa7
- 2.Ba3#
- 2.Qb4#
- 2.Qa3#
- 2.Qxc4#
- 1...Sxc3!
- threat
- 1.Qe4?
- threat
- 2.Sb7#
- 2.Rd5#
- 2.Rxb5#
- 2.Qd5#
- 1...Bxd4
- 2.Sb7#
- 1...Bxa5
- 2.Rxb5#
- 2.Qd5#
- 1...Sxd4
- 2.Sb7#
- 1...Sa3
- 2.Sb7#
- 2.Rd5#
- 2.Qd5#
- 1...Sd6
- 2.Rd5#
- 2.Qd5#
- 1...Sa7
- 2.Sb7#
- 2.Rd5#
- 2.Qd5#
- 1...fxe4!
- threat
- 1.Qe6?
- threat
- 2.Rxc4#
- 2.Rd5#
- 2.Qxc4#
- 2.Qd5#
- 1...Bxd4
- 2.Sb7#
- 2.Rxb5#
- 1...Sxd4
- 2.Sb7#
- 1...cxd3
- 2.Sb3#
- 2.Rc4#
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 1...Sa3
- 2.Rd5#
- 2.Qd5#
- 1...Sd6
- 2.Rd5#
- 2.Qd5#
- 1...Kxd4!
- threat
- 1.Sb3+?
- Keys
- 1.Sb4!
- 1...Kxb4
- 2.Rxc4#
- 1...Kxd4
- 2.Qg1#
- 1...Bxe1
- 2.Rxb5#
- 1...Bxb2
- 2.Rd5#
- 1...Bxb4
- 2.Rxb5#
- 1...Bxd4
- 2.Sb7#
- 1...Sxd4
- 2.Qe7#
- 1...cxd3
- 2.Sb3#
- 1...Bd2
- 2.Rxb5#
- 1...Sa3
- 2.Rd5#
- 1...Sd6
- 2.Rd5#
- 1...Sa7
- 2.Rd5#
- 1...Kxb4
- 1.Sb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- B(a);XQ(A)::R1(K),XS(d)
- B(a);::R1(K),XS(d)
- Tries
- Try
- S(H);CHECK
- Vars
- K(e);P-FLIGHT,XP(J)::QAB(A)
- Refutation
- P(c);XS(H)
- Try
- S(H);CHECK
- Vars
- K(e);P-FLIGHT,XP(J)::QAB(A)
- Refutation
- K(e);P_SPINB(a),S_FLIGHT,XR(F)
- Try
- R(F);CHECK,XP(c)
- Vars
- K(e);S_FLIGHT::R(K)
- Refutation
- K(e);P-FLIGHT
- Try
- R(K);
- Threat
- DUALS(3)
- Vars
- B(a);OGATE,XR(F)::QAB1(A)
- B(a);XS(H)::R1(F),XP(c)
- S(d);N_GUARD,XR(F)::QAB(A)
- Refutation
- S(d);
- Try
- Q(A);P_PINP(c),XB(a)
- Threat
- DUALS(3)
- Vars
- S(d);OGATE,XR(F)::QAB1(A),XS(d)
- Refutation
- S(d);N_SPINP(c),XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- B(a);XR(F)::S(H)
- S(d);XR(F)::S(H)
- Refutation
- P(f);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- S(d);SBLOCK,XR(F)::S(H)
- Refutation
- K(e);P_SPINB(a),S_FLIGHT,XR(F)
- Try
- Actual
- S(B);
- Vars
- K(e);P_SPINB(a),P_SPINP(c),P_SPINS(d),S_FLIGHT,XS(B)::R1(F),XP(c)
- K(e);OGATEB,P_SPINB(a),S_FLIGHT,XR(F)::QAB(A)
- B(a);XQ(A)::R1(K),XS(d)
- B(a);XB(C)::R1(F)
- B(a);XS(B)::R1(K),XS(d)
- B(a);XR(F)::S(H)
- S(d);N_GUARD,SBLOCK,XR(F)::QAB(A)
- P(c);N_GUARD,XP(E)::S(H)
- B(a);::R1(K),XS(d)
- S(d);::R1(F)
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).