MESON Chess Problem Database
Problem Display
PID: 240322 (q7/3BP1P1/bQPR2PK/2P1k3/5p1N/5Pr1/1N3b2/8 w - - 0 1)
Maleika, Gerhard
Problem-Forum, 2006
#2
12 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxc6
- 2.e8Q#
- 2.e8R#
- 1...Qb7
- 2.e8Q#
- 2.e8R#
- 1...Qa7
- 2.e8Q#
- 2.e8R#
- 1...Qh8+
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rxg6+
- 2.Sxg6#
- 1...Bxc5
- 2.Qxc5#
- 1...Bd3
- 2.Sxd3#
- 1...Bc4
- 2.Sxc4#
- 1...Bb7
- 2.Sd3#
- 2.Sc4#
- 1...Bc8
- 2.Sd3#
- 2.Sc4#
- 2.e8Q#
- 2.e8R#
- 1...Qxc6
- Tries
- 1.Qb3?
- threat
- 2.Qd5#
- 2.Qe6#
- 1...Qh8+
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rxg6+
- 2.Sxg6#
- 1...Qxc6
- 2.Qe6#
- 2.e8Q#
- 2.e8R#
- 1...Bc4
- 2.Sxc4#
- 1...Qg8!
- threat
- 1.Qxa6?
- threat
- 2.Sd3#
- 2.Sc4#
- 1...Qh8+
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rxg6+
- 2.Sxg6#
- 1...Qxa6
- 2.e8Q#
- 2.e8R#
- 1...Bxc5
- 2.Sc4#
- 1...Qg8
- 2.Sd3#
- 1...Rxf3!
- threat
- 1.Qb8?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Rxg6+
- 2.Sxg6#
- 1...Qxc6
- 2.e8Q#
- 2.e8R#
- 1...Rxf3
- 2.e8Q#
- 2.e8R#
- 1...Bxc5
- 2.e8Q#
- 2.e8R#
- 1...Qb7
- 2.e8Q#
- 2.e8R#
- 1...Qa7
- 2.e8Q#
- 2.e8R#
- 1...Rg1
- 2.e8Q#
- 2.e8R#
- 1...Rg2
- 2.e8Q#
- 2.e8R#
- 1...Rh3
- 2.e8Q#
- 2.e8R#
- 1...Rg4
- 2.e8Q#
- 2.e8R#
- 1...Rg5
- 2.e8Q#
- 2.e8R#
- 1...Be1
- 2.e8Q#
- 2.e8R#
- 1...Bg1
- 2.e8Q#
- 2.e8R#
- 1...Be3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Bf1
- 2.e8Q#
- 2.e8R#
- 1...Be2
- 2.e8Q#
- 2.e8R#
- 1...Bd3
- 2.Sxd3#
- 2.e8Q#
- 2.e8R#
- 1...Bc4
- 2.Sxc4#
- 1...Bb5
- 2.e8Q#
- 2.e8R#
- 1...Bb7
- 2.Sd3#
- 2.Sc4#
- 2.e8Q#
- 2.e8R#
- 1...Bc8
- 2.Sd3#
- 2.Sc4#
- 2.e8Q#
- 2.e8R#
- 1...Qxb8!
- threat
- 1.Qb3?
- Keys
- 1.Qb4!
- threat
- 2.Qe4#
- 1...Qh8+
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rxg6+
- 2.Sxg6#
- 1...Qxc6
- 2.e8Q#
- 2.e8R#
- 1...Rxf3
- 2.Sxf3#
- 1...Bxc5
- 2.Qxc5#
- 1...Bd4
- 2.Qxd4#
- 1...Bd3
- 2.Sxd3#
- 1...Bc4
- 2.Sxc4#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(f);N_GUARD,XP(F)::P=Q
- Q(f);N_GUARD::P=Q
- Q(f);CHECK,OGATE::PXQ(f)=Q
- R(b);CHECK,XP(H)::S(C),XR(b)
- B(a);OGATE,XP(D)::QAR2(E),XB(a)
- B(e);N_GUARD::S(A),XB(e)
- Tries
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,OGATE::PXQ(f)=Q
- R(b);CHECK,XP(H)::S(C),XR(b)
- B(e);N_GUARD::S(A),XB(e)
- Refutation
- Q(f);
- Try
- Q(E);XB(e)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,OGATE::PXQ(f)=Q
- R(b);CHECK,XP(H)::S(C),XR(b)
- Q(f);N_GUARD,XQ(E)::P=Q
- B(a);XP(D)::S(A)
- Q(f);::S(A)
- Refutation
- R(b);XP(B)
- Try
- Q(E);
- Threat
- P=Q
- Vars
- R(b);CHECK,XP(H)::S(C),XR(b)
- Q(f);XP(F)::P=Q
- R(b);XP(B)::P=Q
- B(a);XP(D)::P=Q
- Q(f);::P=Q
- R(b);::P=Q
- R(b);P_PINS(C)::P=Q
- B(a);::P=Q
- B(e);::P=Q
- B(e);N_GUARD::S(A),XB(e)
- Refutation
- Q(f);XQ(E)
- Try
- Actual
- Q(E);
- Threat
- QAR1(E)
- Vars
- Q(f);CHECK,OGATE::PXQ(f)=Q
- R(b);CHECK,XP(H)::S(C),XR(b)
- Q(f);N_GUARD,XP(F)::P=Q
- R(b);XP(B)::S(C),XR(b)
- B(a);OGATE,XP(D)::QAR2(E),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(e);N_GUARD::S(A),XB(e)
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).