MESON Chess Problem Database
Problem Display
PID: 109741 (8/p7/Q7/8/pKNppp2/P1PkbRp1/8/3B3N w - - 0 1)
Zagoruyko, Leonid Ivanovich
Hlas l'udu, 1978
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...g2
- 2.Sf2#
- 1...dxc3
- 2.Qd6#
- 1...exf3
- 2.Qg6#
- 1...g2
- Tries
- 1.Sxg3?
- 1...dxc3
- 2.Qd6#
- 1...exf3
- 2.Qg6#
- 1...fxg3!
- 1...dxc3
- 1.Rxe3+?
- 1...dxe3
- 2.Qd6#
- 1...fxe3!
- 1...dxe3
- 1.Qxa4?
- threat
- 2.Qc2#
- 1...dxc3
- 2.Qd7#
- 1...a5+!
- threat
- 1.Qa5?
- 1...dxc3
- 2.Qd8#
- 2.Qd5#
- 1...exf3
- 2.Qf5#
- 1...g2
- 2.Sf2#
- 1...a6!
- 1...dxc3
- 1.Qd6?
- threat
- 2.Qxd4#
- 1...exf3
- 2.Qg6#
- 1...a5+!
- threat
- 1.Qf6?
- threat
- 2.Qxd4#
- 1...dxc3
- 2.Qxc3#
- 2.Qd8#
- 2.Qd6#
- 1...exf3
- 2.Qf5#
- 2.Qg6#
- 1...a5+!
- threat
- 1.Sxg3?
- Keys
- 1.Qxa7!
- threat
- 2.Qxd4#
- 1...dxc3
- 2.Qd7#
- 1...exf3
- 2.Qh7#
- threat
- 1.Qxa7!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- P(c);N_GUARD::S(B)
- P(e);OGATEB,XP(D)::QAR(H)
- P(f);N_SPINB(b),OGATEB,XR(E)::QAB(H)
- Tries
- Try
- S(B);XP(c)
- Vars
- P(e);OGATEB,XP(D)::QAR(H)
- P(f);N_SPINB(b),OGATEB,XR(E)::QAB(H)
- Refutation
- P(g);XS(B)
- Try
- R(E);CHECK,XB(b)
- Vars
- P(e);S_CUTP(g),XR(E)::QAR(H)
- Refutation
- P(g);XR(E)
- Try
- Q(H);XP(d)
- Threat
- QAB1(H)
- Vars
- P(e);OGATEB,XP(D)::QAR(H)
- Refutation
- P(h);CHECK
- Try
- Q(H);
- Vars
- P(f);N_SPINB(b),OGATEB,XR(E)::QAB(H)
- P(c);N_GUARD::S(B)
- Refutation
- P(h);
- Try
- Q(H);P_PINP(e)
- Threat
- QAR1(H),XP(e)
- Vars
- P(f);N_SPINB(b),OGATEB,XR(E)::QAB(H)
- Refutation
- P(h);CHECK
- Try
- Q(H);
- Threat
- QAR1(H),XP(e)
- Refutation
- P(h);CHECK
- Try
- Actual
- Q(H);XP(h)
- Threat
- QAR1(H),XP(e)
- Vars
- P(e);OGATEB,XP(D)::QAR(H)
- P(f);N_SPINB(b),OGATEB,XR(E)::QAB(H)
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).