MESON Chess Problem Database
Problem Display
PID: 208028 (RK6/1P6/1p2p3/pk1pP3/1PrP4/1Q6/4B3/8 w - - 0 1)
Davidson, Harry
New York Clipper, 1873
#2
8 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...axb4
- 2.Qa4#
- 1...a4
- 2.Qxa4#
- 1...axb4
- Tries
- 1.Bf1?
- 1...axb4
- 2.Qa4#
- 1...a4
- 2.Qxa4#
- 1...Kc6!
- 1...axb4
- 1.Bd3?
- 1...axb4
- 2.Qa4#
- 1...a4
- 2.Qxa4#
- 1...Kc6!
- 1...axb4
- 1.Ra7?
- 1...axb4
- 2.Qa4#
- 1...a4
- 2.Qxa4#
- 1...Kc6!
- 1...axb4
- 1.Qa3?
- 1...axb4
- 2.Qa4#
- 1...a4
- 2.Qxa4#
- 1...Kc6!
- 1...axb4
- 1.Bf1?
- Keys
- 1.Ra6!
- 1...Kxa6
- 2.b5#
- 1...Kc6
- 2.Qa4#
- 1...axb4
- 2.Qa4#
- 1...a4
- 2.Qxa4#
- 1...Kxa6
- 1.Ra6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(b);P_SPINP(b),XP(C)::QAB1(B)
- P(b);::QAB1(B),XP(b)
- Tries
- Try
- B(A);
- Vars
- P(b);P_SPINP(b),XP(C)::QAB1(B)
- P(b);::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINR(a),S_FLIGHT
- Try
- B(A);
- Vars
- P(b);P_SPINP(b),XP(C)::QAB1(B)
- P(b);::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINR(a),S_FLIGHT
- Try
- R(G);
- Vars
- P(b);P_SPINP(b),XP(C)::QAB1(B)
- P(b);::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINR(a),S_FLIGHT
- Try
- Q(B);
- Vars
- P(b);XP(C)::QAB1(B)
- P(b);::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINR(a),S_FLIGHT
- Try
- Actual
- R(G);
- Vars
- K(c);OGATE,S_FLIGHT,XR(G)::P(C)
- K(c);N_SPINR(a),P_SPINP(e),S_FLIGHT::QAB(B)
- P(b);P_SPINP(b),XP(C)::QAB1(B)
- P(b);::QAB1(B),XP(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).