MESON Chess Problem Database
Problem Display
PID: 149196 (3K4/2p1p3/pp1kp2p/2R1R2r/2PP1p2/6p1/N2QN3/8 w - - 0 1)
Labai, Zoltan
Best Problems, 2011
#2
8 + 10
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Tries
- 1.Sb4?
- threat
- 2.Rc6#
- 1...c6
- 2.Rxc6#
- 1...bxc5!
- threat
- 1.Qe3?
- threat
- 2.Rxe6#
- 1...Rxe5
- 2.Qxe5#
- 2.dxe5#
- 1...fxe3!
- threat
- 1.Qb4?
- threat
- 2.Rxc7#
- 1...Rxe5
- 2.dxe5#
- 1...bxc5
- 2.Qxc5#
- 1...c6
- 2.Rcd5#
- 1...a5!
- threat
- 1.Qxf4?
- threat
- 2.Red5#
- 1...Rxe5
- 2.Qxe5#
- 1...bxc5!
- threat
- 1.Sb4?
- Keys
- 1.d5!
- threat
- 2.dxe6#
- 1...Kxc5
- 2.Qb4#
- 1...Kxe5
- 2.Qxf4#
- 1...Rxe5
- 2.Rc6#
- 1...bxc5
- 2.Rxe6#
- 1...exd5
- 2.Qxd5#
- threat
- 1.d5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(A);
- Threat
- R1(F)
- Vars
- P(i);::R1(F),XP(i)
- Refutation
- P(e);XR(F)
- Try
- Q(B);
- Threat
- R1(G),XP(g)
- Refutation
- P(b);XQ(B)
- Try
- Q(B);
- Threat
- QAB(B)+R(F),XP(i)
- Vars
- R(c);OGATE,XR(G)::P(E),XR(c)
- P(e);OGATE,P_SPINP(e),XR(F)::QAB1(B),XP(e)
- P(i);SBLOCK::QAB(B)+R(F),DCHECK
- Refutation
- P(d);
- Try
- Q(B);XP(b)
- Threat
- QAB(B)+R(G),DCHECK
- Vars
- R(c);OGATE,P_SPINR(c),XR(G)::QAB1(B),XR(c)
- Refutation
- P(e);XR(F)
- Try
- Actual
- P(E);
- Threat
- QAR(B)+P(E),XP(g)
- Vars
- K(f);OGATEB,S_FLIGHT,XR(F)::QAB1(B)
- K(f);OGATEB,S_FLIGHT,XR(G)::QAB1(B),XP(b)
- R(c);SBLOCK,XR(G)::R1(F)
- P(e);SBLOCK,XR(F)::R1(G),XP(g)
- P(g);OGATE,P_SPINP(g),XP(E)::QAR1(B),XP(g)
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).