MESON Chess Problem Database
Problem Display
PID: 239623 (5N2/K1Q1R3/BPP1P2p/2k1n2r/1N6/p1P5/qp5b/8 w - - 0 1)
Maleika, Gerhard
Schach-Aktiv, 2008
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxe6
- 2.Sxe6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sxc6+
- 2.Qxc6#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sf7
- 2.Sd7#
- 1...Qxe6
- Tries
- 1.Rf7?
- threat
- 2.Qe7#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxe6
- 2.Sxe6#
- 1...Sxf7
- 2.Sd7#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Qd5!
- threat
- 1.Rg7?
- threat
- 2.Qe7#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxe6
- 2.Sxe6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sf7
- 2.Sd7#
- 1...Qd5!
- threat
- 1.Rh7?
- threat
- 2.Qe7#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxe6
- 2.Sxe6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sf7
- 2.Sd7#
- 1...Qd5!
- threat
- 1.Re8?
- threat
- 2.Qe7#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxe6
- 2.Sxe6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sf7
- 2.Sd7#
- 1...Qd5!
- threat
- 1.Rf7?
- Keys
- 1.Rd7!
- threat
- 2.Qd6#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxe6
- 2.Sxe6#
- 1...Sxd7
- 2.Sxd7#
- 1...Qd5
- 2.Rxd5#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sc4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...Sf7
- 2.Sd3#
- threat
- 1.Rd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);XP(F)::S(J),XQ(a)
- S(f);N_GUARD::S(J)
- S(f);CHECK,OGATE,P_SPINS(f),XP(E)::QAR1(H),XS(f)
- S(f);N_GUARD::S(J),XS(f)
- Tries
- Try
- R(I);
- Threat
- QAB(H)
- Vars
- S(f);CHECK,OGATE,P_SPINS(f),XP(E)::QAR1(H),XS(f)
- Q(a);XP(F)::S(J),XQ(a)
- S(f);N_GUARD,XR(I)::S(J)
- S(f);N_GUARD::S(J)
- S(f);N_GUARD::S(J),XS(f)
- Refutation
- Q(a);
- Try
- R(I);
- Threat
- QAB(H)
- Vars
- S(f);CHECK,OGATE,P_SPINS(f),XP(E)::QAR1(H),XS(f)
- Q(a);XP(F)::S(J),XQ(a)
- S(f);N_GUARD::S(J)
- S(f);N_GUARD::S(J),XS(f)
- Refutation
- Q(a);
- Try
- R(I);
- Threat
- QAB(H)
- Vars
- S(f);CHECK,OGATE,P_SPINS(f),XP(E)::QAR1(H),XS(f)
- Q(a);XP(F)::S(J),XQ(a)
- S(f);N_GUARD::S(J)
- S(f);N_GUARD::S(J),XS(f)
- Refutation
- Q(a);
- Try
- R(I);
- Threat
- QAB(H)
- Vars
- S(f);CHECK,OGATE,P_SPINS(f),XP(E)::QAR1(H),XS(f)
- Q(a);XP(F)::S(J),XQ(a)
- S(f);N_GUARD::S(J)
- S(f);N_GUARD::S(J),XS(f)
- Refutation
- Q(a);
- Try
- Actual
- R(I);
- Threat
- QAB1(H)
- Vars
- S(f);CHECK,OGATE,P_SPINS(f),XP(E)::QAR1(H),XS(f)
- Q(a);XP(F)::S(J),XQ(a)
- S(f);XR(I)::S(J),XS(f)
- Q(a);N_GUARD::R1(I),XQ(a)
- S(f);N_GUARD::S(B),XS(f)
- S(f);N_GUARD::S(B)
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).