MESON Chess Problem Database
Problem Display
PID: 16291 (8/1K6/1pp2p2/3pBr2/QPkr2R1/8/bP2nN2/4N3 w - - 0 1)
Shavirin, Valery Mikhailovich
The Problemist, 2000
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Sg3
- 2.Rxd4#
- 1...c5
- 2.b5#
- 1...Sc1
- Tries
- 1.Kxb6?
- threat
- 2.b5#
- 1...Sc3
- 2.Rxd4#
- 1...Bb3!
- threat
- 1.Kxc6?
- threat
- 2.b5#
- 1...Bb3
- 2.Qb5#
- 1...Sc3
- 2.Rxd4#
- 1...b5!
- threat
- 1.Sed3?
- threat
- 2.b5#
- 1...Bb3
- 2.Qxc6#
- 1...Sc3
- 2.Rxd4#
- 1...b5
- 2.Qxa2#
- 1...Rxf2!
- threat
- 1.Bd6?
- threat
- 2.b5#
- 1...Bb3
- 2.Qxc6#
- 1...b5
- 2.Qxa2#
- 1...Sc3!
- threat
- 1.Kxb6?
- Keys
- 1.Sfd3!
- threat
- 2.b5#
- 1...Bb3
- 2.Qxc6#
- 1...Sc3
- 2.Rxd4#
- 1...b5
- 2.Qxa2#
- threat
- 1.Sfd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- S(b);N_GUARD::R1(F),XR(d)
- P(h);SBLOCK::QAR(D)+P(E)
- Tries
- Try
- K(H);P-FLIGHT,XP(g)
- Threat
- QAR(D)+P(E)
- Vars
- S(b);N_GUARD::R1(F),XR(d)
- Refutation
- B(a);
- Try
- K(H);S_FLIGHT,XP(h)
- Threat
- QAR(D)+P(E)
- Vars
- B(a);SBLOCK::QAB1(D)
- S(b);N_GUARD::R1(F),XR(d)
- Refutation
- P(g);
- Try
- S(A);
- Threat
- QAR(D)+P(E)
- Vars
- B(a);SBLOCK::QAR2(D),XP(h)
- S(b);N_GUARD::R1(F),XR(d)
- P(g);SBLOCK::QAB(D),XB(a)
- Refutation
- R(f);XS(C)
- Try
- B(G);
- Threat
- QAR(D)+P(E)
- Vars
- B(a);SBLOCK::QAR2(D),XP(h)
- P(g);SBLOCK::QAB(D),XB(a)
- Refutation
- S(b);
- Try
- Actual
- S(C);
- Threat
- QAR(D)+P(E)
- Vars
- B(a);SBLOCK::QAR2(D),XP(h)
- S(b);N_GUARD::R1(F),XR(d)
- P(g);SBLOCK::QAB(D),XB(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).