MESON Chess Problem Database
Problem Display
PID: 274681 (3Nn3/3N1pP1/1rP5/1r1kB3/1p2p3/5bQ1/6Bp/1KR3bq w - - 0 1)
Andersson, Sven Tore
To Mat, 1961
#2
9 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Sxb6#
- 1...Bxg2
- 2.Qb3#
- 1...Bg4
- 2.Qb3#
- 1...Bh5
- 2.Qb3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sxg7
- 2.Sf6#
- 1...e3
- 2.Qxf3#
- 1...f5
- 2.g8Q#
- 2.g8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Rc5
- Tries
- 1.Ba1?
- threat
- 2.Qe5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Bd4!
- threat
- 1.Bb2?
- threat
- 2.Qe5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Bd4!
- threat
- 1.Rc5+?
- 1...Rxc5
- 2.Sxb6#
- 1...Bxc5+!
- 1...Rxc5
- 1.Qf4?
- threat
- 2.Qxf7#
- 1...Sxg7
- 2.Sf6#
- 1...Bg4
- 2.Qxe4#
- 1...Bh5
- 2.Qxe4#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...e3
- 2.Rd1#
- 2.Qxf3#
- 2.Qc4#
- 2.Qd4#
- 1...f5
- 2.g8Q#
- 2.g8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Rxc6!
- threat
- 1.g8Q?
- threat
- 2.Qxf7#
- 1...e3
- 2.Qxf3#
- 1...Bg4
- 2.Qb3#
- 1...Bh5
- 2.Qb3#
- 1...Sd6
- 2.Sf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...Rxc6!
- threat
- 1.g8S?
- threat
- 2.Se7#
- 1...e3
- 2.Qxf3#
- 1...Bc5!
- threat
- 1.g8B?
- threat
- 2.Bxf7#
- 1...e3
- 2.Qxf3#
- 1...Bg4
- 2.Qb3#
- 1...Bh5
- 2.Qb3#
- 1...Sd6
- 2.Sf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...Rxc6!
- threat
- 1.Ba1?
- Keys
- 1.Qg6!
- threat
- 2.Qxf7#
- 1...Rxc6
- 2.Qxc6#
- 1...Sxg7
- 2.Qd6#
- 1...fxg6
- 2.g8Q#
- 2.g8B#
- 1...Bg4
- 2.Qxe4#
- 1...Bh5
- 2.Qxe4#
- 1...Sd6
- 2.Qxd6#
- 1...Sc7
- 2.Qd6#
- 1...e3
- 2.Qd3#
- 1...f5
- 2.Qf7#
- 2.Qe6#
- 2.g8Q#
- 2.g8B#
- 1...f6
- 2.Qf7#
- 2.g8Q#
- 2.g8B#
- threat
- 1.Qg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(g);N_GUARD,S_CUTB(a)::S(G),XR(i)
- B(d);OGATE,XB(C)::QAB(D)
- B(d);OGATE,P_SPINP(f)::QAB(D)
- S(k);N_GUARD::S(G)
- S(k);N_GUARD::S(G),XS(k)
- S(k);N_GUARD,XP(H)::S(G)
- P(f);OGATEB,P_SPINB(d)::QAB(D),XB(d)
- P(j);::P=Q
- Tries
- Try
- B(E);
- Threat
- QAR1(D)
- Vars
- P(j);::P=Q
- Refutation
- B(a);P_PINR(B)
- Try
- B(E);
- Threat
- QAR1(D)
- Vars
- P(j);::P=Q
- Refutation
- B(a);P_PINR(B)
- Try
- R(B);CHECK
- Vars
- R(g);SBLOCK,XR(B)::S(G),XR(i)
- Refutation
- B(a);CHECK,XR(B)
- Try
- Q(D);
- Threat
- QAB(D),XP(j)
- Vars
- S(k);N_GUARD,XP(H)::S(G)
- B(d);N_GUARD,P_SPINP(f)::QAB1(D),XP(f)
- S(k);N_GUARD::S(G)
- S(k);N_GUARD::S(G),XS(k)
- P(j);::P=Q
- Refutation
- R(i);XP(F)
- Try
- P(H);P_PINP(j)
- Threat
- QAB(H),XP(j)
- Vars
- P(f);OGATEB,P_SPINB(d)::QAB(D),XB(d)
- B(d);N_SPINP(j),OGATE,P_SPINP(f)::QAB(D)
- S(k);N_GUARD::S(G)
- Refutation
- R(i);XP(F)
- Try
- P(H);
- Threat
- S(H)
- Vars
- P(f);OGATEB,P_SPINB(d)::QAB(D),XB(d)
- Refutation
- B(a);P_PINR(B)
- Try
- P(H);P_PINP(j)
- Threat
- B(H),XP(j)
- Vars
- P(f);OGATEB,P_SPINB(d)::QAB(D),XB(d)
- B(d);N_SPINP(j),OGATE,P_SPINP(f)::QAB(D)
- S(k);N_GUARD::S(G)
- Refutation
- R(i);XP(F)
- Try
- Actual
- Q(D);
- Threat
- QAB(D),XP(j)
- Vars
- R(i);OGATE,XP(F)::QAB1(D),XR(i)
- S(k);N_GUARD,XP(H)::QAR1(D)
- P(j);XQ(D)::P=Q
- B(d);N_GUARD,P_SPINP(f)::QAB1(D),XP(f)
- S(k);N_GUARD::QAR1(D),XS(k)
- S(k);N_GUARD::QAR1(D)
- P(f);OGATE,P_SPINB(d)::QAR2(D)
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).