MESON Chess Problem Database
Problem Display
PID: 143556 (8/1B6/4Pp2/B1p1p3/q2kPRQ1/5P2/nN1P2p1/NKR5 w - - 0 1)
Pulitzer, Walter
British Chess Magazine, 1895
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Qc2+
- 2.Sxc2#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sc2#
- 1...Qc6
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qd7
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qe8
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qa3
- 2.Sc2#
- 2.Rc4#
- 1...Qb4
- 2.Sc2#
- 1...Qc4
- 2.Rxc4#
- 1...Qxa5
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Sxc1
- 2.Bc3#
- 1...Sc3+
- 2.Bxc3#
- 1...Sb4
- 2.Rc4#
- 1...g1Q
- 2.Qxg1#
- 1...g1S
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...c4
- 2.Bb6#
- 1...Qc2+
- Tries
- 1.Bb4?
- threat
- 2.Bxc5#
- 2.Rc4#
- 1...Qc2+
- 2.Sxc2#
- 1...Sc3+
- 2.Bxc3#
- 1...Qxb4
- 2.Sc2#
- 1...Sxc1
- 2.Bc3#
- 1...Sxb4
- 2.Rc4#
- 1...cxb4
- 2.Rc4#
- 1...g1Q
- 2.Bxc5#
- 2.Qxg1#
- 1...g1R
- 2.Bxc5#
- 2.Qxg1#
- 1...Qd1
- 2.Bxc5#
- 1...Qb3
- 2.Sxb3#
- 2.Bxc5#
- 1...Qb5
- 2.Sc2#
- 2.Sb3#
- 1...Qc6
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qa3
- 2.Sc2#
- 2.Rc4#
- 1...Qa5
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qa6
- 2.Sc2#
- 2.Sb3#
- 2.Bxc5#
- 1...Qa7
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...c4
- 2.Rxc4#
- 1...exf4!
- threat
- 1.Rf5?
- 1...Qc2+
- 2.Sxc2#
- 1...Sc3+
- 2.Bxc3#
- 1...Qxa5
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Sxc1
- 2.Bc3#
- 1...c4
- 2.Bb6#
- 1...g1Q
- 2.Qxg1#
- 1...g1S
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sc2#
- 1...Qc6
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qd7
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qe8
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qa3
- 2.Sc2#
- 2.Rc4#
- 1...Qb4
- 2.Sc2#
- 1...Qc4
- 2.Rxc4#
- 1...Sb4
- 2.Rc4#
- 1...Qd1!
- 1...Qc2+
- 1.Rxf6?
- 1...Qc2+
- 2.Sxc2#
- 1...Sc3+
- 2.Bxc3#
- 1...Qxa5
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Sxc1
- 2.Bc3#
- 1...c4
- 2.Bb6#
- 1...g1Q
- 2.Qxg1#
- 1...g1S
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sc2#
- 1...Qc6
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qd7
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qe8
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qa3
- 2.Sc2#
- 2.Rc4#
- 1...Qb4
- 2.Sc2#
- 1...Qc4
- 2.Rxc4#
- 1...Sb4
- 2.Rc4#
- 1...Qd1!
- 1...Qc2+
- 1.Qxg2?
- threat
- 2.Qg1#
- 2.Qf2#
- 1...Qc2+
- 2.Sxc2#
- 1...Sc3+
- 2.Bxc3#
- 1...Qd1
- 2.Qf2#
- 1...Qb3
- 2.Sxb3#
- 1...Qa3
- 2.Sc2#
- 2.Rc4#
- 1...exf4!
- threat
- 1.Qg3?
- threat
- 2.Qf2#
- 1...Qc2+
- 2.Sxc2#
- 1...Sc3+
- 2.Bxc3#
- 1...g1Q
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...Qb3
- 2.Sxb3#
- 1...Qa3
- 2.Sc2#
- 2.Rc4#
- 1...exf4!
- threat
- 1.Bb4?
- Keys
- 1.Qg7!
- 1...Qc2+
- 2.Sxc2#
- 1...Sc3+
- 2.Bxc3#
- 1...Qxa5
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 2.Qd7#
- 1...Sxc1
- 2.Bc3#
- 1...exf4
- 2.Qxf6#
- 1...c4
- 2.Bb6#
- 1...g1Q
- 2.Qxg1#
- 1...g1S
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...Qd1
- 2.Qd7#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sc2#
- 1...Qc6
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qd7
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 2.Qxd7#
- 1...Qe8
- 2.Sc2#
- 2.Sb3#
- 2.Rc4#
- 1...Qa3
- 2.Sc2#
- 2.Rc4#
- 2.Qd7#
- 1...Qb4
- 2.Sc2#
- 2.Qd7#
- 1...Qc4
- 2.Rxc4#
- 1...Sb4
- 2.Rc4#
- 1...f5
- 2.exf5#
- 1...Qc2+
- 1.Qg7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(c);CHECK,N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD,P_PINS(D)::S(A),XQ(c)
- Q(c);N_GUARD,P_PINS(D)::S(A)
- Q(c);N_GUARD::R1(C),XQ(c)
- S(a);N_GUARD,XR(C)::B(J)
- S(a);CHECK,N_GUARD::B(J),XS(a)
- S(a);S_CUTQ(c)::R1(C)
- P(b);OGATE,P_PINR(C)::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XS(b)
- P(b);OGATE::QAB(I),XB(b)
- P(b);OGATE,P_PINR(C)::QAB(I),XR(b)
- P(e);OGATEB::B(J)
- Tries
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,N_GUARD::S(A),XQ(c)
- S(a);CHECK,N_GUARD::B(J),XS(a)
- Q(c);N_GUARD,P_PINS(D),XB(J)::S(A)
- S(a);N_GUARD,XR(C)::B(J)
- S(a);XB(J)::R1(C)
- P(e);XB(J)::R1(C)
- Q(c);P_PINR(C)::B(J),XP(e)
- P(e);::R1(C),XP(e)
- Refutation
- P(f);XR(H)
- Try
- R(H);
- Vars
- Q(c);CHECK,N_GUARD::S(A),XQ(c)
- S(a);CHECK,N_GUARD::B(J),XS(a)
- S(a);N_GUARD,XR(C)::B(J)
- P(e);OGATEB::B(J)
- P(b);OGATE,P_PINR(C)::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XS(b)
- P(b);OGATE::QAB(I),XB(b)
- P(b);OGATE,P_PINR(C)::QAB(I),XR(b)
- Q(c);N_GUARD,P_PINS(D)::S(A),XQ(c)
- Q(c);N_GUARD,P_PINS(D)::S(A)
- Q(c);N_GUARD::R1(C),XQ(c)
- S(a);S_CUTQ(c)::R1(C)
- Refutation
- Q(c);P_PINR(C)
- Try
- R(H);XP(g)
- Vars
- Q(c);CHECK,N_GUARD::S(A),XQ(c)
- S(a);CHECK,N_GUARD::B(J),XS(a)
- S(a);N_GUARD,XR(C)::B(J)
- P(e);OGATEB::B(J)
- P(b);OGATE,P_PINR(C)::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XS(b)
- P(b);OGATE::QAB(I),XB(b)
- P(b);OGATE,P_PINR(C)::QAB(I),XR(b)
- Q(c);N_GUARD,P_PINS(D)::S(A),XQ(c)
- Q(c);N_GUARD,P_PINS(D)::S(A)
- Q(c);N_GUARD::R1(C),XQ(c)
- S(a);S_CUTQ(c)::R1(C)
- Refutation
- Q(c);P_PINR(C)
- Try
- Q(I);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,N_GUARD::S(A),XQ(c)
- S(a);CHECK,N_GUARD::B(J),XS(a)
- Q(c);P_PINR(C)::QAB(I)
- Q(c);N_GUARD,P_PINS(D)::S(A),XQ(c)
- Refutation
- P(f);XR(H)
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- Q(c);CHECK,N_GUARD::S(A),XQ(c)
- S(a);CHECK,N_GUARD::B(J),XS(a)
- P(b);OGATE,P_PINR(C)::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XB(b)
- Q(c);N_GUARD,P_PINS(D)::S(A),XQ(c)
- Refutation
- P(f);XR(H)
- Try
- Actual
- Q(I);
- Vars
- Q(c);CHECK,N_GUARD::S(A),XQ(c)
- S(a);CHECK,N_GUARD::B(J),XS(a)
- S(a);N_GUARD,XR(C)::B(J)
- P(f);OGATEB,P_SPINP(g),XR(H)::QAB(I),XP(g)
- P(e);OGATEB::B(J)
- P(b);OGATE,P_PINR(C)::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XS(b)
- P(b);OGATE::QAB(I),XB(b)
- P(b);OGATE,P_PINR(C)::QAB(I),XR(b)
- Q(c);N_GUARD,P_PINR(C)::QAR(I)
- Q(c);N_GUARD,P_PINS(D)::S(A),XQ(c)
- Q(c);N_GUARD,P_PINS(D)::S(A)
- Q(c);N_GUARD::R1(C),XQ(c)
- S(a);S_CUTQ(c)::R1(C)
- P(g);OGATE,P_SPINP(f)::R(H)+P(G),XP(g)
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).