MESON Chess Problem Database
Problem Display
PID: 110754 (8/6pN/p3n3/K2p1p2/Q1p1kB1R/3pP3/6P1/8 w - - 0 1)
Samotugov, Evgeny S
Veliky, Mikola Moiseyovich
Revista de Sah, 1957
#2
7 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd4
- 2.Sg5#
- 1...Sxf4
- 2.Qe8#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sd4
- Tries
- 1.Kb6?
- 1...Sxf4
- 2.Qe8#
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...a5!
- 1...Sxf4
- 1.Rh1?
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sxf4!
- 1...d2
- 1.Rh2?
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sxf4!
- 1...d2
- 1.Rh3?
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sxf4!
- 1...d2
- 1.Rg4?
- 1...Sxf4
- 2.Qe8#
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...fxg4!
- 1...Sxf4
- 1.Rh5?
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sxf4!
- 1...d2
- 1.Rh6?
- threat
- 2.Rxe6#
- 1...gxh6
- 2.Sf6#
- 1...d2
- 2.Qc2#
- 1...d4
- 2.Qc6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g6
- 2.Sf6#
- 1...Sxf4!
- threat
- 1.Qd1?
- threat
- 2.Qf3#
- 1...d2
- 2.Qc2#
- 2.Qb1#
- 1...Sd4
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sxf4!
- threat
- 1.Qc6?
- threat
- 2.Qxe6#
- 1...Sxf4
- 2.Qe8#
- 2.Qe6#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...d2!
- threat
- 1.Qd7?
- threat
- 2.Qxe6#
- 1...Sxf4
- 2.Qe6#
- 2.Qe8#
- 2.Qe7#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...d2!
- threat
- 1.Qe8?
- threat
- 2.Sg5#
- 2.Qxe6#
- 1...d4
- 2.Qc6#
- 2.Qxe6#
- 2.Qa8#
- 1...g5
- 2.Sxg5#
- 2.Sf6#
- 2.Qxe6#
- 1...d2!
- threat
- 1.Qxc4+?
- 1...Sd4
- 2.Sg5#
- 2.Qxd4#
- 1...d4
- 2.Qxe6#
- 2.Qc6#
- 1...dxc4!
- 1...Sd4
- 1.Kb6?
- Keys
- 1.Qb4!
- 1...Sxf4
- 2.Qe7#
- 1...d2
- 2.Qb1#
- 1...d4
- 2.Qb7#
- 1...Sd4
- 2.Sg5#
- 1...Sc5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc7
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sxf4
- 1.Qb4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);OGATEB,P_SPINS(g),XB(D)::QAR(C)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- P(h);N_GUARD::S(G)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- S(g);OGATEB,P_SPINS(g),XB(D)::QAR(C)
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(G)
- Refutation
- P(f);
- Try
- R(E);
- Vars
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(G)
- Refutation
- S(g);XB(D)
- Try
- R(E);
- Vars
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(G)
- Refutation
- S(g);XB(D)
- Try
- R(E);
- Vars
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(G)
- Refutation
- S(g);XB(D)
- Try
- R(E);
- Vars
- S(g);OGATEB,P_SPINS(g),XB(D)::QAR(C)
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);XR(E)
- Try
- R(E);
- Vars
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(G)
- Refutation
- S(g);XB(D)
- Try
- R(E);
- Threat
- R(E),XS(g)
- Vars
- P(h);N_GUARD,XR(E)::S(G)
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(G)
- Refutation
- S(g);XB(D)
- Try
- Q(C);N_PINP(b)
- Threat
- QAB1(C)
- Vars
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- Refutation
- S(g);P_SPINS(g),XB(D)
- Try
- Q(C);N_PINP(b),P_PINP(d)
- Threat
- QAR2(C),XS(g)
- Vars
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- Refutation
- P(a);
- Try
- Q(C);N_PINP(b)
- Threat
- QAR2(C),XS(g)
- Vars
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- Refutation
- P(a);
- Try
- Q(C);N_PINP(b),P_PINS(g)
- Threat
- DUALS(2)
- Refutation
- P(a);
- Try
- Q(C);CHECK,XP(b)
- Refutation
- P(d);XQ(C)
- Try
- Actual
- Q(C);
- Vars
- S(g);OGATEB,P_SPINS(g),XB(D)::QAR(C)
- P(a);OGATEB::QAB(C)
- P(d);N_SPINP(b),OGATEB::QAB(C)
- S(g);N_GUARD,N_SPINP(b)::S(G)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(h);N_GUARD::S(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).