MESON Chess Problem Database
Problem Display
PID: 204258 (4k3/1p3q2/3KN1Q1/8/4B3/8/8/8 w - - 0 1)
de Savignac Castelet, G Arnaud
L'Echiquier Marseillais, 1925
#2
4 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxg6
- 2.Bxg6#
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Qxg6
- Tries
- 1.Bh1?
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Qxg6!
- 1...b5
- 1.Bg2?
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Qxg6!
- 1...b5
- 1.Bf3?
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Qxg6!
- 1...b5
- 1.Bd5?
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Qxg6!
- 1...b5
- 1.Qh5?
- 1...Qg6
- 2.Bxg6#
- 2.Qxg6#
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Qxh5!
- 1...Qg6
- 1.Qg8+?
- 1...Qf8+
- 2.Qxf8#
- 1...Qxg8!
- 1...Qf8+
- 1.Bh1?
- Keys
- 1.Bd3!
- threat
- 2.Bb5#
- 1...Qxg6
- 2.Bxg6#
- 1...b5
- 2.Bxb5#
- threat
- 1.Bd3!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- Q(b);N_SPINQ(b),OGATE,P_PINS(C),XQ(D)::B(A),XQ(b)
- P(a);N_GUARD::B(A)
- Tries
- Try
- B(A);
- Vars
- P(a);N_GUARD::B(A)
- Refutation
- Q(b);N_SPINQ(b),P_PINS(C),XQ(D)
- Try
- B(A);
- Vars
- P(a);N_GUARD::B(A)
- Refutation
- Q(b);N_SPINQ(b),P_PINS(C),XQ(D)
- Try
- B(A);
- Vars
- P(a);N_GUARD::B(A)
- Refutation
- Q(b);N_SPINQ(b),P_PINS(C),XQ(D)
- Try
- B(A);
- Vars
- P(a);N_GUARD::B(A)
- Refutation
- Q(b);N_SPINQ(b),P_PINS(C),XQ(D)
- Try
- Q(D);
- Vars
- P(a);N_GUARD::B(A)
- Refutation
- Q(b);N_SPINQ(b),XQ(D)
- Try
- Q(D);CHECK,N_PINQ(b)
- Vars
- Q(b);CHECK,N_GUARD,P_SPINQ(b)::QAR1(D),XQ(b)
- Refutation
- Q(b);XQ(D)
- Try
- Actual
- B(A);
- Threat
- B(A)
- Vars
- Q(b);N_SPINQ(b),OGATE,P_PINS(C),XQ(D)::B(A),XQ(b)
- P(a);::B(A),XP(a)
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).