MESON Chess Problem Database
Problem Display
PID: 107925 (5qRN/1p3P2/1P3BBk/6p1/8/pPR1b3/K6p/1Q6 w - - 0 1)
Cooper, CF
Checkmate, 1904
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb4
- 2.Bg7#
- 1...Qc5
- 2.Bg7#
- 1...Qd6
- 2.Bg7#
- 1...Qe7
- 2.Bg7#
- 1...Qg7
- 2.Bxg7#
- 1...Qxf7
- 2.Sxf7#
- 1...Qa8
- 2.Bg7#
- 1...Qb8
- 2.Bg7#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Bg7#
- 1...Qe8
- 2.Bg7#
- 1...Qxg8
- 2.fxg8S#
- 1...Bc1
- 2.Rh3#
- 1...Bg1
- 2.Rh3#
- 1...Bd2
- 2.Rh3#
- 1...Bd4
- 2.Rh3#
- 1...Bf4
- 2.Rh3#
- 1...Bc5
- 2.Rh3#
- 1...Bxb6
- 2.Rh3#
- 1...h1Q
- 2.Qxh1#
- 1...h1S
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Qb4
- Tries
- 1.Bd4?
- 1...Qxf7
- 2.Sxf7#
- 1...Qxg8
- 2.fxg8S#
- 1...Bxd4
- 2.Rh3#
- 1...g4
- 2.Bxe3#
- 1...h1Q
- 2.Qxh1#
- 1...h1S
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Qb4
- 2.Bg7#
- 1...Qc5
- 2.Bg7#
- 1...Qd6
- 2.Bg7#
- 1...Qe7
- 2.Bg7#
- 1...Qg7
- 2.Bxg7#
- 1...Qa8
- 2.Bg7#
- 1...Qb8
- 2.Bg7#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Bg7#
- 1...Qe8
- 2.Bg7#
- 1...Bc1
- 2.Rh3#
- 1...Bg1
- 2.Rh3#
- 1...Bd2
- 2.Rh3#
- 1...Bf4
- 2.Rh3#
- 1...Bf2!
- 1...Qxf7
- 1.Rxe3?
- threat
- 2.Rh3#
- 1...h1Q
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Qb4
- 2.Bg7#
- 1...Qc8
- 2.Bg7#
- 1...g4!
- threat
- 1.Qe4?
- 1...Qxf7
- 2.Sxf7#
- 1...Qxg8
- 2.fxg8S#
- 1...Bxb6
- 2.Rh3#
- 1...h1Q
- 2.Qxh1#
- 1...h1S
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Qb4
- 2.Bg7#
- 1...Qc5
- 2.Bg7#
- 1...Qd6
- 2.Bg7#
- 1...Qe7
- 2.Bg7#
- 1...Qg7
- 2.Bxg7#
- 1...Qa8
- 2.Bg7#
- 1...Qb8
- 2.Bg7#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Bg7#
- 1...Qe8
- 2.Bg7#
- 1...Bc1
- 2.Rh3#
- 1...Bg1
- 2.Rh3#
- 1...Bd2
- 2.Rh3#
- 1...Bd4
- 2.Rh3#
- 1...Bf4
- 2.Rh3#
- 1...Bc5
- 2.Rh3#
- 1...g4
- 2.Qxe3#
- 1...Bf2!
- 1...Qxf7
- 1.Qd1?
- threat
- 2.Qh5#
- 1...h1Q
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...g4!
- threat
- 1.Qe1?
- 1...Qxf7
- 2.Sxf7#
- 1...Qxg8
- 2.fxg8S#
- 1...Bxb6
- 2.Rh3#
- 1...h1Q
- 2.Qxh1#
- 1...h1S
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Qb4
- 2.Bg7#
- 1...Qc5
- 2.Bg7#
- 1...Qd6
- 2.Bg7#
- 1...Qe7
- 2.Bg7#
- 1...Qg7
- 2.Bxg7#
- 1...Qa8
- 2.Bg7#
- 1...Qb8
- 2.Bg7#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Bg7#
- 1...Qe8
- 2.Bg7#
- 1...Bc1
- 2.Rh3#
- 1...Bg1
- 2.Rh3#
- 1...Bd2
- 2.Rh3#
- 1...Bd4
- 2.Rh3#
- 1...Bf4
- 2.Rh3#
- 1...Bc5
- 2.Rh3#
- 1...g4
- 2.Qh4#
- 2.Qxe3#
- 1...Bf2!
- 1...Qxf7
- 1.Qh1?
- threat
- 2.Qxh2#
- 1...Qb4
- 2.Bg7#
- 1...Qd6
- 2.Bg7#
- 1...Qb8
- 2.Bg7#
- 1...Qc8
- 2.Bg7#
- 1...Bg1
- 2.Rh3#
- 1...Bf4
- 2.Rh3#
- 1...Bf2!
- threat
- 1.Bd4?
- Keys
- 1.Qc1!
- 1...Qxf7
- 2.Sxf7#
- 1...Qxg8
- 2.fxg8S#
- 1...Bxc1
- 2.Rh3#
- 1...Bxb6
- 2.Bxg5#
- 2.Rh3#
- 2.Qxg5#
- 1...h1Q
- 2.Qxh1#
- 1...h1S
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Bf2
- 2.Bxg5#
- 2.Qxg5#
- 1...Qb4
- 2.Bg7#
- 1...Qc5
- 2.Bg7#
- 1...Qd6
- 2.Bg7#
- 1...Qe7
- 2.Bg7#
- 1...Qg7
- 2.Bxg7#
- 1...Qa8
- 2.Bg7#
- 1...Qb8
- 2.Bg7#
- 1...Qc8
- 2.Bg7#
- 1...Qd8
- 2.Bg7#
- 1...Qe8
- 2.Bg7#
- 1...Bg1
- 2.Bxg5#
- 2.Rh3#
- 2.Qxg5#
- 1...Bd2
- 2.Rh3#
- 1...Bd4
- 2.Bxg5#
- 2.Rh3#
- 2.Qxg5#
- 1...Bf4
- 2.Rh3#
- 1...Bc5
- 2.Bxg5#
- 2.Rh3#
- 2.Qxg5#
- 1...g4
- 2.Qxe3#
- 1...Qxf7
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- Q(g);N_GUARD::B(F)
- Q(g);N_GUARD::B(F),XQ(g)
- Q(g);P_PINP(C),XP(H)::S(J),XQ(g)
- Q(g);OGATE,XR(I)::PXQ(g)=S
- B(c);OGATE::R(D)
- B(c);OGATE,XP(E)::R(D)
- 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)
- Tries
- Try
- B(F);
- Vars
- Q(g);P_PINP(C),XP(H)::S(J),XQ(g)
- Q(g);OGATE,XR(I)::PXQ(g)=S
- B(c);OGATE,XB(F)::R(D)
- P(d);OGATEB::B(F),XB(c)
- 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)
- Q(g);N_GUARD::B(F)
- Q(g);N_GUARD::B(F),XQ(g)
- B(c);OGATE::R(D)
- Refutation
- B(c);
- Try
- R(D);XB(c)
- Threat
- R(D)
- Vars
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XR(a)
- Q(g);N_GUARD::B(F)
- Refutation
- P(d);
- Try
- Q(A);
- Vars
- Q(g);P_PINP(C),XP(H)::S(J),XQ(g)
- Q(g);OGATE,XR(I)::PXQ(g)=S
- B(c);OGATE,XP(E)::R(D)
- 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)
- Q(g);N_GUARD::B(F)
- Q(g);N_GUARD::B(F),XQ(g)
- B(c);OGATE::R(D)
- P(d);OGATEB::QAB(A),XB(c)
- Refutation
- B(c);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- P(a);OGATEB::QAR(A),XQ(a)
- P(a);OGATEB::QAR(A),XR(a)
- Refutation
- P(d);
- Try
- Q(A);
- Vars
- Q(g);P_PINP(C),XP(H)::S(J),XQ(g)
- Q(g);OGATE,XR(I)::PXQ(g)=S
- B(c);OGATE,XP(E)::R(D)
- 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)
- Q(g);N_GUARD::B(F)
- Q(g);N_GUARD::B(F),XQ(g)
- B(c);OGATE::R(D)
- Refutation
- B(c);
- Try
- Q(A);P_PINP(a)
- Threat
- QAR(A),XP(a)
- Vars
- Q(g);N_GUARD::B(F)
- B(c);OGATE::R(D)
- Refutation
- B(c);
- Try
- Actual
- Q(A);
- Vars
- Q(g);P_PINP(C),XP(H)::S(J),XQ(g)
- Q(g);OGATE,XR(I)::PXQ(g)=S
- B(c);OGATE,XQ(A)::R(D)
- 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)
- Q(g);N_GUARD::B(F)
- Q(g);N_GUARD::B(F),XQ(g)
- B(c);OGATE::R(D)
- P(d);OGATEB,P_SPINB(c)::QAB(A),XB(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).