MESON Chess Problem Database
Problem Display
PID: 240320 (8/7b/1p5K/4B1Qp/RrP1k3/3N4/4PP1b/1r3q2 w - - 0 1)
Maleika, Gerhard
Problem-Forum, 2006
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.f3#
- 1...Qd1
- 2.f3#
- 1...Qe1
- 2.f3#
- 1...Qg1
- 2.f3#
- 1...Qxf2
- 2.Sxf2#
- 1...Bg1
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bxe5
- 2.Qxe5#
- 1...Bf5
- 2.Qe3#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 1...b5
- 2.Sc5#
- 1...Qc1
- Tries
- 1.Ba1?
- threat
- 2.Qd5#
- 1...Qxf2
- 2.Sxf2#
- 1...Rxc4
- 2.Rxc4#
- 1...Qc1
- 2.f3#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Qxe5#
- 1...Bf5
- 2.Qe3#
- 1...Bg8
- 2.Qg6#
- 1...Rb5!
- threat
- 1.Bc3?
- threat
- 2.Qd5#
- 1...Qxf2
- 2.Sxf2#
- 1...Rxc4
- 2.Rxc4#
- 1...Qc1
- 2.f3#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Qxe5#
- 1...Bf5
- 2.Qe3#
- 1...Bg8
- 2.Qg6#
- 1...Rb5!
- threat
- 1.Bf6?
- threat
- 2.Qd5#
- 1...Qxf2
- 2.Sxf2#
- 1...Rxc4
- 2.Rxc4#
- 1...Be5
- 2.Qxe5#
- 1...Qc1
- 2.f3#
- 1...Bf4
- 2.Qxf4#
- 1...Bf5
- 2.Qe3#
- 1...Bg8
- 2.Qg6#
- 1...Rb5!
- threat
- 1.Bg7?
- threat
- 2.Qd5#
- 1...Qxf2
- 2.Sxf2#
- 1...Rxc4
- 2.Rxc4#
- 1...Be5
- 2.Qxe5#
- 1...Qc1
- 2.f3#
- 1...Bf4
- 2.Qxf4#
- 1...Bf5
- 2.Qe3#
- 1...Bg8
- 2.Qg6#
- 1...Rb5!
- threat
- 1.Bh8?
- threat
- 2.Qd5#
- 1...Qxf2
- 2.Sxf2#
- 1...Rxc4
- 2.Rxc4#
- 1...Be5
- 2.Qxe5#
- 1...Qc1
- 2.f3#
- 1...Bf4
- 2.Qxf4#
- 1...Bf5
- 2.Qe3#
- 1...Bg8
- 2.Qg6#
- 1...Rb5!
- threat
- 1.Qh4+?
- 1...Bf4+
- 2.Qxf4#
- 1...Kf5!
- 1...Bf4+
- 1.Qg4+?
- 1...Bf4+
- 2.Qxf4#
- 1...hxg4!
- 1...Bf4+
- 1.Ba1?
- Keys
- 1.Bb2!
- threat
- 2.Qd5#
- 1...Qxf2
- 2.Sxf2#
- 1...Rxc4
- 2.Rxc4#
- 1...Qc1
- 2.f3#
- 1...Rb5
- 2.cxb5#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Qxe5#
- 1...Bf5
- 2.Qe3#
- 1...Bg8
- 2.Qg6#
- threat
- 1.Bb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(b);N_GUARD,P_PINQ(G)::P(B)
- Q(b);N_GUARD::P(B)
- Q(b);XP(B)::S(C),XQ(b)
- B(c);N_GUARD::QAR1(G)
- B(c);N_GUARD,P_PINQ(G)::QAR1(G),XB(c)
- B(c);OGATE,XB(F)::QAR1(G),XB(c)
- B(h);SBLOCK::QAR1(G)
- B(h);N_GUARD::QAB(G),XB(h)
- B(h);N_GUARD::QAB(G)
- P(g);N_GUARD::S(C)
- Tries
- Try
- B(F);
- Threat
- QAB1(G)
- Vars
- Q(b);XP(B)::S(C),XQ(b)
- R(d);OGATE,P_SPINR(d),XP(E)::R(D),XR(d)
- Q(b);N_GUARD,P_PINQ(G)::P(B)
- B(c);N_GUARD,P_PINQ(G)::QAR1(G),XB(c)
- B(c);N_GUARD::QAR1(G),XB(c)
- B(h);SBLOCK::QAR1(G)
- B(h);N_GUARD::QAB(G)
- Refutation
- R(d);
- Try
- B(F);
- Threat
- QAB1(G)
- Vars
- Q(b);XP(B)::S(C),XQ(b)
- R(d);OGATE,P_SPINR(d),XP(E)::R(D),XR(d)
- Q(b);N_GUARD,P_PINQ(G)::P(B)
- B(c);N_GUARD,P_PINQ(G)::QAR1(G),XB(c)
- B(c);N_GUARD::QAR1(G),XB(c)
- B(h);SBLOCK::QAR1(G)
- B(h);N_GUARD::QAB(G)
- Refutation
- R(d);
- Try
- B(F);
- Threat
- QAB1(G)
- Vars
- Q(b);XP(B)::S(C),XQ(b)
- R(d);OGATE,P_SPINR(d),XP(E)::R(D),XR(d)
- B(c);N_GUARD::QAR1(G),XB(c)
- Q(b);N_GUARD,P_PINQ(G)::P(B)
- B(c);N_GUARD,P_PINQ(G)::QAR1(G),XB(c)
- B(h);SBLOCK::QAR1(G)
- B(h);N_GUARD::QAB(G)
- Refutation
- R(d);
- Try
- B(F);
- Threat
- QAB1(G)
- Vars
- Q(b);XP(B)::S(C),XQ(b)
- R(d);OGATE,P_SPINR(d),XP(E)::R(D),XR(d)
- B(c);N_GUARD::QAR1(G),XB(c)
- Q(b);N_GUARD,P_PINQ(G)::P(B)
- B(c);N_GUARD,P_PINQ(G)::QAR1(G),XB(c)
- B(h);SBLOCK::QAR1(G)
- B(h);N_GUARD::QAB(G)
- Refutation
- R(d);
- Try
- B(F);
- Threat
- QAB1(G)
- Vars
- Q(b);XP(B)::S(C),XQ(b)
- R(d);OGATE,P_SPINR(d),XP(E)::R(D),XR(d)
- B(c);N_GUARD::QAR1(G),XB(c)
- Q(b);N_GUARD,P_PINQ(G)::P(B)
- B(c);N_GUARD,P_PINQ(G)::QAR1(G),XB(c)
- B(h);SBLOCK::QAR1(G)
- B(h);N_GUARD::QAB(G)
- Refutation
- R(d);
- Try
- Q(G);CHECK
- Vars
- B(c);CHECK,N_GUARD,P_SPINB(c)::QAR1(G),XB(c)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(G);CHECK
- Vars
- B(c);CHECK,N_GUARD,P_SPINB(c)::QAR1(G),XB(c)
- Refutation
- P(f);XQ(G)
- Try
- Actual
- B(F);
- Threat
- QAB1(G)
- Vars
- Q(b);XP(B)::S(C),XQ(b)
- R(d);OGATE,P_SPINR(d),XP(E)::R(D),XR(d)
- Q(b);N_GUARD,P_PINQ(G)::P(B)
- R(d);OGATE::R(D)+P(E),XR(d)
- B(c);N_GUARD,P_PINQ(G)::QAR1(G),XB(c)
- B(c);N_GUARD::QAR1(G),XB(c)
- B(h);SBLOCK::QAR1(G)
- B(h);N_GUARD::QAB(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).