MESON Chess Problem Database
Problem Display
PID: 179742 (8/8/8/5R2/2p1K1P1/1B5Q/4kp2/1N2b1B1 w - - 0 1)
Kopnin, Aleksey Grigorevich
Sahs (Latvia), 1968
#2
7 + 4
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...fxg1Q
- 2.Qf3#
- 1...fxg1S
- 2.Qf1#
- 2.Qe3#
- 1...fxg1B
- 2.Qf1#
- 2.Qf3#
- 1...fxg1R
- 2.Qe3#
- 2.Qf3#
- 1...f1Q
- 2.Qxf1#
- 2.Qe3#
- 1...f1S
- 2.Qxf1#
- 2.Qf3#
- 1...f1B
- 2.Qxf1#
- 2.Qe3#
- 2.Qf3#
- 1...f1R
- 2.Qxf1#
- 2.Qe3#
- 1...cxb3
- 2.Qd3#
- 1...c3
- 2.Qd3#
- 1...fxg1Q
- Tries
- 1.Sc3+?
- 1...Kd2
- 2.Qe3#
- 1...Bxc3!
- 1...Kd2
- 1.Sc3+?
- Keys
- 1.Qg3!
- 1...Kf1
- 2.Bxc4#
- 1...fxg1Q
- 2.Qf3#
- 1...fxg1S
- 2.Qe3#
- 1...fxg1B
- 2.Qf3#
- 1...fxg1R
- 2.Qe3#
- 2.Qf3#
- 1...cxb3
- 2.Qd3#
- 1...Bd2
- 2.Qxf2#
- 1...Bc3
- 2.Qxf2#
- 1...Bb4
- 2.Qxf2#
- 1...Ba5
- 2.Qxf2#
- 1...f1Q
- 2.Qe3#
- 1...f1S
- 2.Qf3#
- 1...f1B
- 2.Qe3#
- 2.Qf3#
- 1...f1R
- 2.Qe3#
- 1...c3
- 2.Qd3#
- 1...Kf1
- 1.Qg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- P(c);XB(B)::QAB1(D)
- P(d);N_GUARD,XB(C)::QAB1(D)
- P(d);N_GUARD::QAB1(D)
- Tries
- Try
- S(A);CHECK
- Vars
- K(b);P-FLIGHT::QAB1(D)
- Refutation
- B(a);XS(A)
- Try
- Actual
- Q(D);
- Vars
- K(b);P_SPINP(c),S_FLIGHT::B(C),XP(d)
- P(c);XB(B)::QAB1(D)
- P(c);XB(B)::QAR1(D)
- P(d);N_GUARD,XB(C)::QAB1(D)
- B(a);N_GUARD::QAR1(D),XP(c)
- P(c);::QAR1(D)
- P(c);::QAB1(D)
- P(d);N_GUARD::QAB1(D)
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).