MESON Chess Problem Database
Problem Display
PID: 208117 (1b5Q/8/8/5P2/8/7K/8/5Rqk w - - 0 1)
Wheeler, Charles Henry
Dubuque Chess Journal, 1874
#2
4 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Bh2
- Tries
- 1.Rb1?
- 1...Qf1+
- 2.Rxf1#
- 1...Qc1
- 2.Rxc1#
- 1...Qd1
- 2.Rxd1#
- 1...Qe1
- 2.Rxe1#
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Qxb1!
- 1...Qf1+
- 1.Rc1?
- 1...Qf1+
- 2.Rxf1#
- 1...Qd1
- 2.Rxd1#
- 1...Qe1
- 2.Rxe1#
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Qxc1!
- 1...Qf1+
- 1.Rd1?
- 1...Qf1+
- 2.Rxf1#
- 1...Qe1
- 2.Rxe1#
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Qxd1!
- 1...Qf1+
- 1.Re1?
- 1...Qf1+
- 2.Rxf1#
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Qxe1!
- 1...Qf1+
- 1.Qa1?
- threat
- 2.Rxg1#
- 2.Qa8#
- 1...Qxf1+
- 2.Qxf1#
- 1...Bh2
- 2.Qa8#
- 1...Ba7!
- threat
- 1.Qd4?
- threat
- 2.Rxg1#
- 2.Qxg1#
- 2.Qe4#
- 2.Qd5#
- 1...Bh2
- 2.Qe4#
- 2.Qd5#
- 1...Ba7
- 2.Rxg1#
- 2.Qe4#
- 2.Qd5#
- 1...Qxf1+!
- threat
- 1.Qg7?
- threat
- 2.Rxg1#
- 2.Qxg1#
- 2.Qg2#
- 2.Qb7#
- 1...Bh2
- 2.Qg2#
- 2.Qb7#
- 1...Bg3
- 2.Qb7#
- 1...Ba7
- 2.Qg2#
- 2.Qb7#
- 1...Bc7
- 2.Rxg1#
- 2.Qxg1#
- 2.Qg2#
- 1...Qxf1+!
- threat
- 1.Qc8?
- threat
- 2.Qb7#
- 2.Qc6#
- 1...Bc7
- 2.Qb7#
- 2.Qa8#
- 1...Qxf1+!
- threat
- 1.Qd8?
- threat
- 2.Qd5#
- 1...Bd6
- 2.Qa8#
- 1...Qxf1+!
- threat
- 1.Qe8?
- threat
- 2.Qc6#
- 2.Qe4#
- 1...Be5
- 2.Qc6#
- 2.Qa8#
- 1...Qxf1+!
- threat
- 1.Qf8?
- 1...Bd6
- 2.Qa8#
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Qxf1+!
- 1...Bd6
- 1.Qg8?
- threat
- 2.Rxg1#
- 2.Qd5#
- 2.Qxg1#
- 2.Qg2#
- 1...Bh2
- 2.Qd5#
- 2.Qg2#
- 2.Qa8#
- 1...Bg3
- 2.Qd5#
- 2.Qa8#
- 1...Ba7
- 2.Qd5#
- 2.Qg2#
- 2.Qa8#
- 1...Qxf1+!
- threat
- 1.f6?
- 1...Bd6
- 2.Qa8#
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Qxf1+!
- 1...Bd6
- 1.Rb1?
- Keys
- 1.Ra1!
- 1...Qf1+
- 2.Rxf1#
- 1...Qxa1
- 2.Qxa1#
- 1...Qb1
- 2.Rxb1#
- 1...Qc1
- 2.Rxc1#
- 1...Qd1
- 2.Rxd1#
- 1...Qe1
- 2.Rxe1#
- 1...Bh2
- 2.Qa8#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Qf1+
- 1.Ra1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(c);OGATE::QAB(D)
- Tries
- Try
- R(A);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- B(c);OGATE::QAB(D)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(A);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- B(c);OGATE::QAB(D)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(A);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- B(c);OGATE::QAB(D)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- R(A);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- B(c);OGATE::QAB(D)
- Refutation
- Q(a);N_SPINQ(a),XR(A)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATE,XR(A)::QAR2(D),XQ(a)
- B(c);::QAB(D)
- Refutation
- B(c);
- Try
- Q(D);
- Threat
- DUALS(4)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- B(c);::QAB(D)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- Q(D);
- Threat
- DUALS(2)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- B(c);OGATE::QAB(D)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- Q(D);
- Threat
- DUALS(2)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- Q(D);
- Vars
- B(c);OGATE::QAB(D)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- Q(D);
- Threat
- DUALS(4)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- P(C);
- Vars
- B(c);OGATE::QAB(D)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XR(A)
- Try
- Actual
- R(A);
- Vars
- Q(a);CHECK,OGATEB::R(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XR(A)::QAB1(D),XQ(a)
- Q(a);OGATEB::R(A),XQ(a)
- B(c);OGATE::QAB(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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