MESON Chess Problem Database
Problem Display
PID: 10576 (4R3/p2pKQ1r/r2p1Bpb/q2p2Pn/b3kp1N/pB2PN2/P1P5/1n2R3 w - - 0 1)
Grant, Herbert W
1st Prize, BCF 113. Ty., 1966-1967
#2
12 + 15
| 5862 | An ABC of Chess Problems | 1970 |
| 3772 | FIDE Album (1965-1967) | 1976 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qxe1
- 2.Kd8#
- 1...Qd2
- 2.Kd8#
- 1...Qc3
- 2.Bxd5#
- 1...Qb4
- 2.Kd8#
- 2.Bxd5#
- 1...Qb6
- 2.Bxd5#
- 1...Qc7
- 2.Bxd5#
- 1...Qd8+
- 2.Kxd8#
- 1...Qb5
- 2.Kd8#
- 1...Qc5
- 2.Kd8#
- 1...Rb6
- 2.Kd8#
- 1...Rc6
- 2.Kxd7#
- 1...Rxf7+
- 2.Kxf7#
- 1...Rg7
- 2.Kf8#
- 1...Rh8
- 2.Qxg6#
- 1...Bxb3
- 2.Kxd7#
- 1...Bb5
- 2.Bxd5#
- 1...Bc6
- 2.Kxd6#
- 1...Bxg5
- 2.Kf8#
- 2.Sxg5#
- 1...Bg7
- 2.Qxg6#
- 1...Bf8+
- 2.Kxf8#
- 1...Sc3
- 2.Sd2#
- 1...Sxf6
- 2.Kxf6#
- 1...Qxe1
- Tries
- 1.Sd2+?
- 1...Qxd2
- 2.Kd8#
- 1...Sxd2!
- 1...Qxd2
- 1.Bg7?
- threat
- 2.Kf8#
- 2.Qxg6#
- 1...Qd8+
- 2.Kxd8#
- 1...Bxg5+
- 2.Sxg5#
- 1...Qxe1
- 2.Kd8#
- 2.Kf8#
- 1...Rxg7
- 2.Kf8#
- 1...Bxg7
- 2.Qxg6#
- 1...Sxg7
- 2.Qxf4#
- 1...fxe3
- 2.Kf8#
- 1...Qc3
- 2.Bxd5#
- 2.Qxd5#
- 2.Qxg6#
- 1...Rh8
- 2.Qxg6#
- 1...Sg3
- 2.Kf6#
- 2.Kf8#
- 2.Qxf4#
- 1...Sf6
- 2.Kxf6#
- 2.Qxg6#
- 1...d4!
- threat
- 1.Sd2+?
- Keys
- 1.Bd4!
- 1...Qd8+
- 2.Kxd8#
- 1...Rxf7+
- 2.Kxf7#
- 1...Bxg5+
- 2.Sxg5#
- 1...Bf8+
- 2.Kxf8#
- 1...Qxe1
- 2.Kd8#
- 2.Bxd5#
- 1...Bxb3
- 2.Kxd7#
- 1...fxe3
- 2.Rxe3#
- 1...Sd2
- 2.exf4#
- 1...Qd2
- 2.Kd8#
- 2.Bxd5#
- 1...Qc3
- 2.Kd8#
- 2.Bxd5#
- 1...Qb4
- 2.Kd8#
- 2.Bxd5#
- 1...Qb6
- 2.Bxd5#
- 2.exf4#
- 1...Qc7
- 2.Bxd5#
- 2.exf4#
- 1...Qb5
- 2.Kd8#
- 1...Qc5
- 2.Kd8#
- 2.exf4#
- 1...Rb6
- 2.Kd8#
- 1...Rc6
- 2.Kxd7#
- 1...Rg7
- 2.Kf8#
- 1...Rh8
- 2.Qxg6#
- 1...Bb5
- 2.Bxd5#
- 1...Bc6
- 2.Kxd6#
- 1...Bg7
- 2.Qxg6#
- 1...Sc3
- 2.Sd2#
- 1...Sg3
- 2.Kf6#
- 1...Sf6
- 2.Kxf6#
- 1...Sg7
- 2.Qxf4#
- 1...Qd8+
- 1.Bd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- Q(f);XR(A)::R(L)+K(J)
- Q(f);::R(L)+K(J)
- Q(f);N_GUARD::B(D),XP(g)
- Q(f);CHECK::R(L)+K(J),XQ(f)
- R(i);::R(L)+K(J)
- R(i);::R(L)+K(J),XP(n)
- R(o);CHECK,XQ(K)::R(L)+K(J),XR(o)
- R(o);::R(L)+K(J)
- R(o);N_PINQ(K)::QAB(K),XP(k)
- B(c);XB(D)::R(L)+K(J),XP(n)
- B(c);S_CUTQ(f)::B(D),XP(g)
- B(c);::R(L)+K(J),XP(j)
- B(l);N_PINQ(K)::QAB(K),XP(k)
- B(l);CHECK::R(L)+K(J),XB(l)
- S(a);N_GUARD,S_CUTQ(f)::S(F)
- S(h);XB(I)::R(L)+K(J),XS(h)
- Tries
- Try
- S(F);CHECK
- Vars
- Q(f);XS(F)::R(L)+K(J)
- Refutation
- S(a);XS(F)
- Try
- B(I);N_SPINQ(K)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK::R(L)+K(J),XQ(f)
- B(l);CHECK,XP(H)::S(F),XB(l)
- R(o);P_PINQ(K),XB(I)::R(L)+K(J)
- B(l);XB(I)::QAB(K),XP(k)
- S(h);N_GUARD,XB(I)::QAR1(K),XP(e)
- P(e);P_SPINP(e),XP(E)::R(L)+K(J)
- R(o);::QAB(K),XP(k)
- Refutation
- P(g);
- Try
- Actual
- B(I);
- Vars
- Q(f);CHECK::R(L)+K(J),XQ(f)
- R(o);CHECK,XQ(K)::R(L)+K(J),XR(o)
- B(l);CHECK,XP(H)::S(F),XB(l)
- B(l);CHECK::R(L)+K(J),XB(l)
- B(c);XB(D)::R(L)+K(J),XP(n)
- P(e);OGATE,P_SPINP(e),XP(E)::R1(A),XP(e)
- S(a);S_CUTQ(f)::R(A)+P(E),XP(e)
- Q(f);::R(L)+K(J)
- R(i);::R(L)+K(J)
- R(i);::R(L)+K(J),XP(n)
- R(o);::R(L)+K(J)
- R(o);N_PINQ(K)::QAB(K),XP(k)
- B(c);S_CUTQ(f)::B(D),XP(g)
- B(c);::R(L)+K(J),XP(j)
- B(l);N_PINQ(K)::QAB(K),XP(k)
- S(a);N_GUARD,S_CUTQ(f)::S(F)
- S(h);::R(L)+K(J)
- S(h);::R(L)+K(J),XS(h)
- S(h);N_PINQ(K)::QAR1(K),XP(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).