MESON Chess Problem Database
Problem Display
PID: 15723 (6K1/5N1p/7b/1n1pB1R1/3Pk1p1/3p1p2/4pPN1/7Q w - - 0 1)
Rice, John Michael
1/2 Prize, Mansfield MT, 1986-1987
#2
8 + 9
| 3297 | FIDE Album (1986-1988) | 1995 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
| 5174 | Chess Problem Spectrum | 2003 |
| 133 | The Problemist Supplement | 2006 |
| 136 | Problem Observer | 2011 |
| 133 | The Problemist Supplement | 2013 |
| 133 | The Problemist Supplement | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bxg5
- 2.Qxh7#
- 1...Bg7
- 2.Qxh7#
- 1...Bf8
- 2.Qxh7#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sxd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...d2
- 2.Qb1#
- 1...fxg2
- 2.Qxg2#
- 1...g3
- 2.Qh4#
- 1...Bxg5
- Tries
- 1.Kh8?
- 1...Bxg5
- 2.Qxh7#
- 1...Sxd4
- 2.Sd6#
- 1...fxg2
- 2.Qxg2#
- 1...d2
- 2.Qb1#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Bf8
- 2.Qxh7#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...g3
- 2.Qh4#
- 1...Bg7+!
- 1...Bxg5
- 1.Se1?
- 1...Bxg5
- 2.Qxh7#
- 1...Sxd4
- 2.Sd6#
- 1...Bg7
- 2.Qxh7#
- 1...Bf8
- 2.Qxh7#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...g3
- 2.Qxf3#
- 2.Qh4#
- 1...d2!
- 1...Bxg5
- 1.Sf4?
- 1...Bxg5
- 2.Qxh7#
- 1...Sxd4
- 2.Sd6#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Bg7
- 2.Qxh7#
- 1...Bf8
- 2.Qxh7#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...d2
- 2.Qb1#
- 1...g3!
- 1...Bxg5
- 1.Sxh6?
- threat
- 2.Rxg4#
- 1...fxg2
- 2.Qxg2#
- 1...d2
- 2.Qb1#
- 1...g3
- 2.Rg4#
- 2.Qh4#
- 1...Sxd4!
- threat
- 1.Bf6?
- 1...Bxg5
- 2.Qxh7#
- 1...Sxd4
- 2.Sd6#
- 2.Re5#
- 1...d2
- 2.Qb1#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Sa3
- 2.Sd6#
- 1...Bg7
- 2.Qxh7#
- 1...Bf8
- 2.Qxh7#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...g3
- 2.Qh4#
- 1...fxg2!
- 1...Bxg5
- 1.Rxg4+?
- 1...Bf4
- 2.Rxf4#
- 2.Qxh7#
- 1...Kf5!
- 1...Bf4
- 1.Qc1?
- threat
- 2.Qe3#
- 2.Qf4#
- 1...d2
- 2.Qb1#
- 2.Qc2#
- 1...e1Q
- 2.Qf4#
- 2.Qxe1#
- 1...e1R
- 2.Qf4#
- 2.Qxe1#
- 1...Bxg5!
- threat
- 1.Qh2?
- threat
- 2.Qf4#
- 1...Bxg5
- 2.Qxh7#
- 1...g3
- 2.Qh4#
- 1...d2!
- threat
- 1.Qh4?
- threat
- 2.Qxg4#
- 1...Bxg5
- 2.Qxh7#
- 1...d2!
- threat
- 1.Qh5?
- threat
- 2.Qxg4#
- 1...Bxg5
- 2.Qxh7#
- 1...g3
- 2.Qg4#
- 2.Qh4#
- 1...d2!
- threat
- 1.Qxh6?
- threat
- 2.Qxh7#
- 1...Sxd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...fxg2!
- threat
- 1.Kh8?
- Keys
- 1.Sh4!
- 1...Bxg5
- 2.Sxg5#
- 1...Sxd4
- 2.Sd6#
- 1...d2
- 2.Qb1#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Bg7
- 2.Rxg4#
- 1...Bf8
- 2.Rxg4#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...g3
- 2.Qxf3#
- 1...Bxg5
- 1.Sh4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- B(h);OGATE::QAB(A),XP(i)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD,XP(D)::S(G)
- S(f);N_GUARD::S(G),XS(f)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::QAB(A)
- P(c);OGATE,P_SPINP(c),XS(C)::QAB(A),XP(c)
- P(e);OGATEB::QAR(A)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- S(f);N_GUARD,XP(D)::S(G)
- P(c);OGATE,P_SPINP(c),XS(C)::QAB(A),XP(c)
- P(b);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- B(h);OGATE::QAB(A),XP(i)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- P(e);OGATEB::QAR(A)
- Refutation
- B(h);CHECK
- Try
- S(C);P_PINP(c)
- Vars
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- S(f);N_GUARD,XP(D)::S(G)
- B(h);OGATE::QAB(A),XP(i)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- Refutation
- P(b);
- Try
- S(C);P_PINP(c)
- Vars
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- S(f);N_GUARD,XP(D)::S(G)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- B(h);OGATE::QAB(A),XP(i)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- P(b);OGATEB::QAB(A)
- Refutation
- P(e);
- Try
- S(G);XB(h)
- Threat
- R(F),XP(e)
- Vars
- P(c);OGATE,P_SPINP(c),XS(C)::QAB(A),XP(c)
- P(b);OGATEB::QAB(A)
- Refutation
- S(f);XP(D)
- Try
- B(E);
- Vars
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- P(b);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- S(f);N_GUARD::S(G)
- B(h);OGATE::QAB(A),XP(i)
- S(f);N_GUARD::S(G),XS(f)
- P(e);OGATEB::QAR(A)
- Refutation
- P(c);P_SPINP(c),XS(C)
- Try
- R(F);CHECK,XP(e)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- B(h);XR(F)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- P(e);OGATEB::QAR(A)
- Refutation
- P(b);
- Try
- Q(A);P_PINP(e)
- Threat
- QAR2(A),XP(e)
- Vars
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- QAR2(A),XP(e)
- Vars
- B(h);OGATE,XR(F)::QAB(A),XP(i)
- Refutation
- P(b);
- Try
- Q(A);XB(h)
- Threat
- QAB(A),XP(i)
- Vars
- S(f);N_GUARD,XP(D)::S(G)
- S(f);N_GUARD::S(G),XS(f)
- Refutation
- P(c);XS(C)
- Try
- Actual
- S(C);P_PINP(c)
- Vars
- B(h);XR(F)::S(G),XB(h)
- S(f);N_GUARD,XP(D)::S(G)
- P(b);OGATEB::QAB(A)
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XS(a)
- P(a);OGATEB::QAR(A),XB(a)
- P(a);OGATEB::QAR(A),XR(a)
- B(h);N_GUARD::R(F),XP(e)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- P(e);N_GUARD::QAB1(A),XP(c)
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).