MESON Chess Problem Database
Problem Display
PID: 81602 (2K2n2/4pp2/2BPkpnR/p7/3B2P1/3R3N/r2b3Q/8 w - - 0 1)
Milewski, Stefan
Comm., The Problemist, 2008
#2
9 + 9
| 56 | The Problemist | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sh8
- 2.Qe5#
- 1...f5
- 2.Qe5#
- 1...Sh4
- Tries
- 1.Sg5+?
- 1...fxg5
- 2.Qe5#
- 1...Bxg5!
- 1...fxg5
- 1.Ba1?
- threat
- 2.Bd5#
- 1...exd6
- 2.Qxd6#
- 1...Bf4
- 2.Qxa2#
- 1...Sf4
- 2.Sg5#
- 1...Se5
- 2.Qxe5#
- 1...Rc2!
- threat
- 1.Bb2?
- threat
- 2.Bd5#
- 1...exd6
- 2.Qxd6#
- 1...Sf4
- 2.Sg5#
- 1...Se5
- 2.Qxe5#
- 1...Bf4!
- threat
- 1.Re3+?
- 1...Se5
- 2.Qxe5#
- 1...Bxe3!
- 1...Se5
- 1.Sg5+?
- Keys
- 1.Bc3!
- threat
- 2.Bd5#
- 1...exd6
- 2.Qxd6#
- 1...Bf4
- 2.Qxa2#
- 1...Sf4
- 2.Sg5#
- 1...Se5
- 2.Qxe5#
- threat
- 1.Bc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- S(f);N_GUARD,P_SPINP(e)::QAR1(A)
- S(f);N_GUARD,P_SPINP(e)::QAR1(A),XS(f)
- P(e);N_GUARD,P_SPINS(f)::QAR1(A)
- Tries
- Try
- S(C);CHECK
- Vars
- P(e);P_SPINS(f),XS(C)::QAR1(A)
- Refutation
- B(b);XS(C)
- Try
- B(D);
- Threat
- B(F)
- Vars
- P(g);OGATE,XP(G)::QAR1(A),XP(g)
- B(b);OGATE::QAB(A),XR(a)
- S(f);P_SPINP(e),S_CUTB(b)::S(C)
- S(f);N_GUARD,P_SPINP(e)::QAR1(A),XS(f)
- Refutation
- R(a);P_PINB(F)
- Try
- B(D);
- Threat
- B(F)
- Vars
- P(g);OGATE,XP(G)::QAR1(A),XP(g)
- S(f);P_SPINP(e),S_CUTB(b)::S(C)
- S(f);N_GUARD,P_SPINP(e)::QAR1(A),XS(f)
- Refutation
- B(b);
- Try
- R(B);CHECK
- Vars
- S(f);N_GUARD,P_SPINP(e),P_SPINS(f)::QAR1(A),XS(f)
- Refutation
- B(b);XR(B)
- Try
- Actual
- B(D);
- Threat
- B(F)
- Vars
- P(g);OGATE,XP(G)::QAR1(A),XP(g)
- B(b);OGATE::QAB(A),XR(a)
- S(f);P_SPINP(e),S_CUTB(b)::S(C)
- S(f);N_GUARD,P_SPINP(e)::QAR1(A),XS(f)
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).