MESON Chess Problem Database
Problem Display
PID: 120702 (8/BKP5/1N6/8/1q2N3/4k1P1/p7/R2Q3B w - - 0 1)
Pulitzer, Walter
Montreal Gazette, 1894
#2
9 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sa4#
- 2.Sc4#
- 2.Sd5#
- 2.Sd7#
- 2.Sa8#
- 2.Sc8#
- 1...Qd2
- 2.Qxd2#
- 1...Qa3
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qc3
- 2.Sc4#
- 2.Sd5#
- 1...Qa5
- 2.Sc4#
- 2.Sd5#
- 1...Qc5
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qd6
- 2.Sc4#
- 2.Sd5#
- 1...Qe7
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qf8
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qb1
- 2.Qd2#
- 1...Qb3
- 2.Qd2#
- 1...Qa4
- 2.Sxa4#
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qc4
- 2.Sxc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qd4
- 2.Sc4#
- 2.Sd5#
- 2.Qf3#
- 1...Qxe4+
- 2.Sd5#
- 1...Qb5
- 2.Qd2#
- 1...Qxb6+
- 2.Bxb6#
- 1...Qe1
- Tries
- 1.Ka8?
- threat
- 2.Sc4#
- 2.Sd5#
- 1...Qxe4+
- 2.Sd5#
- 1...Qxb6
- 2.Bxb6#
- 2.Qd2#
- 1...Qd2
- 2.Qxd2#
- 1...Qc4
- 2.Sxc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qf8+!
- threat
- 1.Kc8?
- threat
- 2.Sc4#
- 2.Sd5#
- 1...Qxb6
- 2.Bxb6#
- 2.Qd2#
- 1...Qd2
- 2.Qxd2#
- 1...Qc4
- 2.Sxc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qf8+!
- threat
- 1.Bg2?
- 1...Qxe4+
- 2.Sd5#
- 1...Qxb6+
- 2.Bxb6#
- 1...Qd2
- 2.Qxd2#
- 1...Qc5
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qe1
- 2.Sa4#
- 2.Sc4#
- 2.Sd5#
- 2.Sd7#
- 2.Sa8#
- 2.Sc8#
- 1...Qa3
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qc3
- 2.Sc4#
- 2.Sd5#
- 1...Qa5
- 2.Sc4#
- 2.Sd5#
- 1...Qd6
- 2.Sc4#
- 2.Sd5#
- 1...Qe7
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qf8
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qb1
- 2.Qd2#
- 1...Qb3
- 2.Qd2#
- 1...Qa4
- 2.Sxa4#
- 2.Sc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qc4
- 2.Sxc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qd4
- 2.Sc4#
- 2.Sd5#
- 2.Qf3#
- 1...Qb5
- 2.Qd2#
- 1...Qb2!
- 1...Qxe4+
- 1.Rxa2?
- threat
- 2.Re2#
- 1...Qxe4+
- 2.Sd5#
- 1...Qxb6+
- 2.Bxb6#
- 1...Qd2
- 2.Qxd2#
- 1...Qe1
- 2.Sa4#
- 2.Sc4#
- 2.Sd5#
- 2.Sd7#
- 2.Sa8#
- 2.Sc8#
- 1...Qc4
- 2.Sxc4#
- 2.Sd5#
- 2.Qd2#
- 1...Qb5
- 2.Qd2#
- 1...Qb2!
- threat
- 1.Ka8?
- Keys
- 1.Sf2!
- 1...Qe4+
- 2.Sd5#
- 1...Qxb6+
- 2.Bxb6#
- 1...Kxf2
- 2.Qf3#
- 1...Qd2
- 2.Sc4#
- 2.Sd5#
- 1...Qe1
- 2.Sg4#
- 2.Sa4#
- 2.Sc4#
- 2.Sd5#
- 2.Sd7#
- 2.Sa8#
- 2.Sc8#
- 1...Qa3
- 2.Sg4#
- 2.Sc4#
- 2.Sd5#
- 1...Qc3
- 2.Sg4#
- 2.Sc4#
- 2.Sd5#
- 1...Qa5
- 2.Sg4#
- 2.Sc4#
- 2.Sd5#
- 1...Qc5
- 2.Sg4#
- 1...Qd6
- 2.Sg4#
- 2.Sc4#
- 2.Sd5#
- 1...Qe7
- 2.Sg4#
- 2.Sc4#
- 2.Sd5#
- 1...Qf8
- 2.Sg4#
- 2.Sc4#
- 2.Sd5#
- 1...Qb1
- 2.Sg4#
- 1...Qb2
- 2.Sg4#
- 1...Qb3
- 2.Sg4#
- 1...Qa4
- 2.Sxa4#
- 2.Sc4#
- 2.Sd5#
- 1...Qc4
- 2.Sxc4#
- 2.Sd5#
- 1...Qd4
- 2.Qe1#
- 1...Qf4
- 2.Sc4#
- 2.Sd5#
- 1...Qg4
- 2.Sxg4#
- 2.Sc4#
- 2.Sd5#
- 1...Qh4
- 2.Sc4#
- 2.Sd5#
- 1...Qb5
- 2.Sg4#
- 1...Qe4+
- 1.Sf2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- Q(c);N_GUARD,N_PINS(F)::QAB1(B),XQ(c)
- Q(c);N_GUARD::QAB1(B)
- Q(c);CHECK,N_PINS(F),XS(E)::B(G)+S(F),DCHECK
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(G),XQ(c)
- Tries
- Try
- K(H);N_SPINS(F),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,XS(E)::B(G)+S(F),DCHECK
- Q(c);N_GUARD::QAB1(B),XQ(c)
- Refutation
- Q(c);CHECK
- Try
- K(H);N_SPINS(F),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD::QAB1(B),XQ(c)
- Refutation
- Q(c);CHECK
- Try
- B(C);
- Vars
- Q(c);CHECK,N_PINS(F),XS(E)::B(G)+S(F),DCHECK
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(G),XQ(c)
- Q(c);N_GUARD,N_PINS(F)::QAB1(B),XQ(c)
- Q(c);N_GUARD::QAB1(B)
- Refutation
- Q(c);
- Try
- R(A);XP(a)
- Threat
- R1(A)
- Vars
- Q(c);CHECK,N_PINS(F),XS(E)::B(G)+S(F),DCHECK
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(G),XQ(c)
- Q(c);N_GUARD,N_PINS(F)::QAB1(B),XQ(c)
- Q(c);N_GUARD::QAB1(B)
- Refutation
- Q(c);
- Try
- Actual
- S(E);
- Vars
- Q(c);CHECK,N_PINS(F)::B(G)+S(F),DCHECK
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(G),XQ(c)
- K(b);S_FLIGHT,XS(E)::QAR1(B)
- Q(c);N_GUARD,N_PINS(F)::S(E)
- Q(c);N_GUARD::S(E)
- Q(c);N_GUARD,N_PINS(F),SBLOCK::QAR2(B)
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).