MESON Chess Problem Database
Problem Display
PID: 216256 (8/4B3/8/3b1Q2/2Nkpp2/8/1K2P1B1/8 w - - 0 1)
Gray, Alexander
Australasian (The), 1881
#2
6 + 4
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxc4
- 2.Bc5#
- 2.Qxe4#
- 2.Qc5#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qxe4#
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Bf7
- 2.Qxe4#
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...Bg8
- 2.Qxe4#
- 2.Qc5#
- 1...e3
- 2.Qd3#
- 2.Qxd5#
- 1...Bxc4
- Tries
- 1.Kb3?
- threat
- 2.Qe5#
- 2.Qf6#
- 1...Bc6
- 2.Bc5#
- 2.Bf6#
- 2.Qc5#
- 2.Qe5#
- 1...Be6
- 2.Bc5#
- 2.Bf6#
- 2.Qxe4#
- 2.Qc5#
- 2.Qe5#
- 1...Bb7
- 2.Bc5#
- 2.Bf6#
- 2.Qc5#
- 2.Qe5#
- 1...Bf7
- 2.Bc5#
- 2.Bf6#
- 2.Qxe4#
- 2.Qc5#
- 2.Qe5#
- 1...Ba8
- 2.Bc5#
- 2.Bf6#
- 2.Qc5#
- 2.Qe5#
- 1...Bg8
- 2.Bc5#
- 2.Bf6#
- 2.Qxe4#
- 2.Qc5#
- 2.Qe5#
- 1...Bxc4+!
- threat
- 1.Bf3?
- 1...Bxc4
- 2.Bc5#
- 2.Qxe4#
- 2.Qc5#
- 1...exf3
- 2.Qd3#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qxe4#
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Bf7
- 2.Qxe4#
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...Bg8
- 2.Qxe4#
- 2.Qc5#
- 1...e3
- 2.Qd3#
- 2.Qxd5#
- 1...Kxc4!
- 1...Bxc4
- 1.Qd7?
- 1...Kxc4
- 2.Qa4#
- 1...e3
- 2.Qxd5#
- 1...f3!
- 1...Kxc4
- 1.Qc8?
- threat
- 2.Bf6#
- 2.Qc5#
- 1...Bxc4
- 2.Qc5#
- 1...Be6
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Bf7
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...Bg8
- 2.Qc5#
- 1...Bc6!
- threat
- 1.e3+?
- 1...Kd3
- 2.Bf1#
- 1...Kxc4
- 2.Bf1#
- 1...fxe3!
- 1...Kd3
- 1.Kb3?
- Keys
- 1.Bf1!
- 1...Kxc4
- 2.e3#
- 1...Bxc4
- 2.Bc5#
- 2.Qc5#
- 1...f3
- 2.e3#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Bf7
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...Bg8
- 2.Qc5#
- 1...e3
- 2.Qd3#
- 1...Kxc4
- 1.Bf1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(d);OGATE::QAB1(E)
- Tries
- Try
- K(A);P-FLIGHT,P_SPINS(D)
- Threat
- DUALS(2)
- Refutation
- B(d);CHECK,XS(D)
- Try
- B(C);
- Vars
- P(b);OGATE,XB(C)::QAR1(E)
- B(d);OGATE::QAB1(E)
- Refutation
- K(a);P-FLIGHT,XS(D)
- Try
- Q(E);P_PINB(d)
- Vars
- K(a);N_SPINB(d),OGATEB,P-FLIGHT,XS(D)::QAR2(E)
- P(b);::QAR1(E),XB(d)
- Refutation
- P(c);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(d);XS(D)::QAB1(E)
- B(d);::QAB1(E)
- Refutation
- B(d);
- Try
- P(B);CHECK
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::B(C)
- K(a);P-FLIGHT,XS(D)::B(C)
- Refutation
- P(c);XP(B)
- Try
- Actual
- B(C);
- Vars
- K(a);P-FLIGHT,XS(D)::B(C)+P(B)
- P(c);N_GUARD::P(B)
- B(d);OGATE::QAB1(E)
- P(b);OGATE::QAR1(E)
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).