MESON Chess Problem Database
Problem Display
PID: 97303 (8/1Q6/bNrPpp2/4pN2/R2qkbR1/1P2B2P/2P3P1/1BK5 w - - 0 1)
Stocchi, Ottavio
Le Probleme TT, 1949
#2
13 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxf5
- 2.Qh7#
- 1...Qxa4
- 2.c4#
- 1...Qb4
- 2.c4#
- 1...Qc4
- 2.c3#
- 1...Bxb7
- 2.c3#
- 1...Kxf5
- Tries
- 1.Bxf4?
- threat
- 2.Sg3#
- 1...Kxf5
- 2.Qh7#
- 1...Qxa4
- 2.c4#
- 1...exf5
- 2.Qxc6#
- 1...Qb4
- 2.c4#
- 1...Qc4
- 2.c3#
- 1...exf4!
- threat
- 1.Rxd4+?
- 1...Kxf5
- 2.Qh7#
- 1...exd4!
- 1...Kxf5
- 1.Bxf4?
- Keys
- 1.Bd2!
- threat
- 2.Sg3#
- 1...Kxf5
- 2.Qh7#
- 1...Qxa4
- 2.c4#
- 1...exf5
- 2.Qxc6#
- 1...Qb4
- 2.c4#
- 1...Qc4
- 2.c3#
- threat
- 1.Bd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(b);N_SPINB(c),N_SPINQ(a),N_SPINR(f),OGATEB,S_FLIGHT,XS(J)::QAB(M)
- Q(a);N_GUARD,N_SPINQ(a),XR(H)::B(A)+P(C)
- Q(a);N_GUARD::B(A)+P(C)
- Q(a);S_CUTB(e)::B(A)+P(C)
- B(e);N_GUARD,N_SPINR(f),XQ(M)::B(A)+P(C)
- Tries
- Try
- B(F);N_SPINB(F),XB(c)
- Threat
- S(J)
- Vars
- K(b);N_SPINQ(a),N_SPINR(f),OGATEB,S_FLIGHT,XS(J)::QAB(M)
- Q(a);N_GUARD,N_SPINQ(a),XR(H)::B(A)+P(C)
- P(g);SBLOCK,XS(J)::QAB(M),XR(f)
- Q(a);N_GUARD::B(A)+P(C)
- Q(a);S_CUTB(e)::B(A)+P(C)
- Refutation
- P(d);P_SPINP(d),XB(F)
- Try
- R(H);CHECK,XQ(a)
- Vars
- K(b);N_SPINB(c),N_SPINR(f),S_FLIGHT,XS(J)::QAB(M)
- Refutation
- P(d);XR(H)
- Try
- Actual
- B(F);
- Threat
- S(J)
- Vars
- K(b);N_SPINB(c),N_SPINQ(a),N_SPINR(f),OGATEB,S_FLIGHT,XS(J)::QAB(M)
- Q(a);N_GUARD,N_SPINQ(a),XR(H)::B(A)+P(C)
- P(g);SBLOCK,XS(J)::QAB(M),XR(f)
- Q(a);N_GUARD::B(A)+P(C)
- Q(a);S_CUTB(e)::B(A)+P(C)
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).