MESON Chess Problem Database
Problem Display
PID: 84664 (4B3/p2pp3/4b1R1/B1k2p2/K1N2P2/1Q2N3/1P6/8 w - - 0 1)
Fillery, William Edmund Frank
Canadian Chess Chat, 1980
#2
9 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kc6
- 2.Qb5#
- 1...Bxc4
- 2.Qxc4#
- 1...a6
- 2.Qb6#
- 1...Kc6
- Tries
- 1.Bc3?
- threat
- 2.Qb5#
- 1...Bxc4
- 2.Qxc4#
- 2.Qa3#
- 2.Qb4#
- 1...a6
- 2.Qb6#
- 1...Kc6!
- threat
- 1.Bb6+?
- 1...axb6
- 2.Qxb6#
- 1...Kc6!
- 1...axb6
- 1.Qd1?
- 1...Kc6
- 2.Qd5#
- 1...Bxc4
- 2.Bb4#
- 2.b4#
- 1...Bd5
- 2.Bb4#
- 2.Qxd5#
- 2.b4#
- 1...Bf7
- 2.Bb4#
- 2.b4#
- 1...Bg8
- 2.Bb4#
- 2.b4#
- 1...d5
- 2.Bb4#
- 2.b4#
- 1...d6
- 2.Bb4#
- 2.b4#
- 1...a6!
- 1...Kc6
- 1.Qd3?
- 1...Kc6
- 2.Qd5#
- 1...Bxc4
- 2.Bb4#
- 2.Qxc4#
- 2.b4#
- 1...Bd5
- 2.Bb4#
- 2.Qxd5#
- 2.b4#
- 1...Bf7
- 2.Bb4#
- 2.b4#
- 1...Bg8
- 2.Bb4#
- 2.b4#
- 1...d5
- 2.Bb4#
- 2.b4#
- 1...d6
- 2.Bb4#
- 2.b4#
- 1...a6!
- 1...Kc6
- 1.Qb4+?
- 1...Kc6
- 2.Se5#
- 2.Rxe6#
- 2.Qb5#
- 1...Kd4!
- 1...Kc6
- 1.Qb7?
- 1...Bxc4
- 2.Qxa7#
- 1...a6
- 2.Bb6#
- 2.Qb6#
- 1...Bd5
- 2.Qxd5#
- 2.Qxa7#
- 1...Bf7
- 2.Qxa7#
- 1...Bg8
- 2.Qxa7#
- 1...d5
- 2.Qxa7#
- 1...d6
- 2.Qxa7#
- 1...Kd4!
- 1...Bxc4
- 1.Qb8?
- 1...Kc6
- 2.Qc7#
- 2.Qb5#
- 2.Qc8#
- 1...Bxc4
- 2.Qxa7#
- 1...a6
- 2.Qb6#
- 1...Bd5
- 2.Qxa7#
- 1...Bf7
- 2.Qxa7#
- 1...Bg8
- 2.Qxa7#
- 1...d5
- 2.Qxa7#
- 1...d6
- 2.Qxa7#
- 1...Kd4!
- 1...Kc6
- 1.Bc3?
- Keys
- 1.Sd2!
- 1...Bxb3+
- 2.Sxb3#
- 1...Kd4
- 2.Qc3#
- 1...Kc6
- 2.Qd5#
- 1...Kd6
- 2.Qd5#
- 1...Bc4
- 2.Qxc4#
- 1...Bd5
- 2.Qxd5#
- 2.Qb4#
- 1...Bf7
- 2.Qb4#
- 1...Bg8
- 2.Qb4#
- 1...a6
- 2.Qb6#
- 1...d5
- 2.Qb4#
- 1...d6
- 2.Qb4#
- 1...Bxb3+
- 1.Sd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- K(a);P-FLIGHT,P_SPINB(c),P_SPINP(e)::QAB1(B)
- B(c);OGATE,XS(E)::QAR1(B),XB(c)
- P(d);N_GUARD::QAB1(B)
- Tries
- Try
- B(G);
- Threat
- QAR1(B)
- Vars
- P(d);N_GUARD::QAB1(B)
- Refutation
- K(a);P-FLIGHT,P_SPINB(c),P_SPINP(e)
- Try
- B(G);CHECK
- Vars
- P(d);OGATE,XB(G)::QAB1(B),XP(d)
- Refutation
- K(a);P-FLIGHT,P_SPINB(c),P_SPINP(e)
- Try
- Q(B);
- Vars
- K(a);P-FLIGHT,P_SPINB(c),P_SPINP(e)::QAB1(B)
- Refutation
- P(d);
- Try
- Q(B);
- Vars
- K(a);P-FLIGHT,P_SPINB(c),P_SPINP(e)::QAB1(B)
- Refutation
- P(d);
- Try
- Q(B);CHECK
- Refutation
- K(a);S_FLIGHT
- Try
- Q(B);
- Vars
- B(c);XS(E)::QAB(B),XP(d)
- B(c);::QAB(B),XP(d)
- P(e);::QAB(B),XP(d)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(B);
- Vars
- B(c);XS(E)::QAB(B),XP(d)
- P(d);N_GUARD::QAB1(B)
- B(c);::QAB(B),XP(d)
- P(e);::QAB(B),XP(d)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- S(E);
- Vars
- B(c);CHECK,XQ(B)::S(E),XB(c)
- K(a);S_FLIGHT::QAB1(B)
- K(a);P-FLIGHT,P_SPINB(c),P_SPINP(e)::QAB1(B)
- K(a);P_SPINB(c),S_FLIGHT::QAR1(B)
- B(c);N_GUARD::QAR1(B),XB(c)
- B(c);::QAB1(B)
- P(d);N_GUARD::QAB1(B)
- P(e);::QAB1(B)
- P(e);SBLOCK::QAB1(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).