MESON Chess Problem Database
Problem Display
PID: 45469 (K6n/bB2QP2/4p2N/4k1p1/pNRpn3/r2bq1P1/r6B/4R3 w - - 0 1)
Sedgwick, Stanley
10th Comm., BCF 051. Ty., 1945-1946
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxg3
- 2.Bxg3#
- 1...Sd2
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sc3
- 2.Sxd3#
- 1...Sxg3
- 2.Bxg3#
- 1...Sf6
- 2.Qc7#
- 1...Qxg3
- Tries
- 1.Bd5?
- threat
- 2.Qxe6#
- 1...Qxg3
- 2.Bxg3#
- 1...Sxg3
- 2.Bxg3#
- 1...Sc5!
- threat
- 1.f8Q?
- threat
- 2.Sg4#
- 2.Qf5#
- 1...Sxg3
- 2.Sg4#
- 2.Bxg3#
- 2.Qd6#
- 2.Qef6#
- 2.Qc7#
- 2.Qeg7#
- 2.Qff6#
- 1...Qf2
- 2.Sg4#
- 2.Qd6#
- 2.Qc7#
- 1...Qf4
- 2.Qd6#
- 2.Qc7#
- 1...Qe2
- 2.Qf5#
- 1...Qf3
- 2.Qd6#
- 2.Qc7#
- 1...Rf2
- 2.Sg4#
- 1...Be2
- 2.Qf5#
- 1...Sd2
- 2.Sg4#
- 2.Qd6#
- 2.Qef6#
- 2.Qfg7#
- 2.Qc7#
- 2.Qeg7#
- 2.Qff6#
- 2.Qxh8#
- 2.g4#
- 1...Sf2
- 2.Qd6#
- 2.Qef6#
- 2.Qfg7#
- 2.Qc7#
- 2.Qeg7#
- 2.Qff6#
- 2.Qxh8#
- 2.g4#
- 1...Sc3
- 2.Sxd3#
- 2.Sg4#
- 2.Qd6#
- 2.Qef6#
- 2.Qfg7#
- 2.Qc7#
- 2.Qeg7#
- 2.Qff6#
- 2.Qxh8#
- 1...Sc5
- 2.Sg4#
- 2.Qd6#
- 2.Qef6#
- 2.Qfg7#
- 2.Qc7#
- 2.Qeg7#
- 2.Qff6#
- 2.Qxh8#
- 1...Sd6
- 2.Sg4#
- 2.Qxd6#
- 2.Qef6#
- 2.Qfg7#
- 2.Qeg7#
- 2.Qff6#
- 2.Qxh8#
- 1...Sf6
- 2.Qd6#
- 2.Qexf6#
- 2.Qc7#
- 2.Qfxf6#
- 1...g4
- 2.Sxg4#
- 2.Qf5#
- 1...Sf7!
- threat
- 1.f8S?
- threat
- 2.Sd7#
- 2.Qxe6#
- 1...Qxg3
- 2.Bxg3#
- 1...Bxc4
- 2.Sd7#
- 1...Sxg3
- 2.Bxg3#
- 1...Sf6
- 2.Qxe6#
- 2.Qc7#
- 1...Sc5!
- threat
- 1.f8R?
- threat
- 2.Sg4#
- 2.Rf5#
- 1...Sxg3
- 2.Sg4#
- 2.Bxg3#
- 2.Qc7#
- 1...Sc5
- 2.Sg4#
- 2.Qc7#
- 1...Qf2
- 2.Sg4#
- 2.Qc7#
- 1...Qf4
- 2.Qc7#
- 1...Qe2
- 2.Rf5#
- 1...Qf3
- 2.Qc7#
- 1...Rf2
- 2.Sg4#
- 1...Be2
- 2.Rf5#
- 1...Sd2
- 2.Sg4#
- 2.Qc7#
- 2.g4#
- 1...Sf2
- 2.Qc7#
- 2.g4#
- 1...Sc3
- 2.Sxd3#
- 2.Sg4#
- 2.Qc7#
- 1...Sd6
- 2.Sg4#
- 2.Qf6#
- 2.Qg7#
- 1...Sf6
- 2.Qc7#
- 1...g4
- 2.Sxg4#
- 2.Rf5#
- 1...Sf7!
- threat
- 1.Bd5?
- Keys
- 1.Qd8!
- threat
- 2.Sc6#
- 1...Qxg3
- 2.Bxg3#
- 1...Sxg3
- 2.Bxg3#
- 1...Sd2
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sc3
- 2.Sxd3#
- 1...Sc5
- 2.Qxd4#
- 1...Sd6
- 2.Qxh8#
- 1...Sf6
- 2.Qc7#
- threat
- 1.Qd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(d);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XQ(d)
- S(g);N_GUARD,P_SPINQ(d),S_CUTR(a)::B(B)+P(C)
- S(g);P_SPINQ(d),S_CUTR(b)::S(D),XB(c)
- S(g);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XS(g)
- S(g);N_GUARD,P_SPINQ(d),SBLOCK::QAB(H)
- Tries
- Try
- B(G);
- Threat
- QAR1(H),XP(j)
- Vars
- Q(d);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XQ(d)
- S(g);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XS(g)
- Refutation
- S(g);P_SPINQ(d)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- Q(d);::QAR1(I)
- R(a);::S(F)
- B(c);::QAR1(I)
- Refutation
- S(l);
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- Q(d);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XQ(d)
- B(c);XR(E)::S(I)
- S(g);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XS(g)
- Refutation
- S(g);P_SPINQ(d)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- Q(d);P_SPINS(g)::QAB(H)
- Q(d);::R1(I)
- R(a);::S(F)
- B(c);::R1(I)
- S(g);N_GUARD,P_SPINQ(d)::QAB(H)
- Refutation
- S(l);
- Try
- Actual
- Q(H);N_PINP(j)
- Threat
- S(D)
- Vars
- Q(d);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XQ(d)
- S(g);OGATE,P_SPINQ(d),P_SPINS(g),XP(C)::B(B),XS(g)
- S(g);N_GUARD,P_SPINQ(d),S_CUTR(a)::B(B)+P(C)
- S(g);P_SPINQ(d),S_CUTR(b)::S(D),XB(c)
- S(g);P_SPINQ(d),S_CUTB(k)::QAB1(H),XP(f)
- S(g);N_GUARD,P_SPINQ(d),SBLOCK::QAB(H),XS(l)
- S(g);N_GUARD,P_SPINQ(d),SBLOCK::QAB(H)
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).