MESON Chess Problem Database
Problem Display
PID: 7531 (2q2n2/1n1pBp1b/3pkP1p/4Np2/3R1P2/b3N2K/2BPR3/8 w - - 0 1)
Buglos, Janos
Die Schwalbe, 1991
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Bg8
- 2.Bxf5#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Bxf5#
- 1...Bg8
- Tries
- 1.Sd1?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 1...Qc3+
- 2.Sd3#
- 1...Qxc2
- 2.Sd3#
- 1...dxe5
- 2.Rxe5#
- 1...Qc4
- 2.Sd3#
- 2.Sxc4#
- 1...Qc6
- 2.Sxc6#
- 1...Bg6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sxg6#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Sxg6#
- 1...Qc5!
- threat
- 1.Sf1?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 1...Qc3+
- 2.Sd3#
- 1...Qxc2
- 2.Sd3#
- 1...dxe5
- 2.Rxe5#
- 1...Qc4
- 2.Sd3#
- 2.Sxc4#
- 1...Qc6
- 2.Sxc6#
- 1...Bg6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sxg6#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Sxg6#
- 1...Qc5!
- threat
- 1.Sg2?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 1...Qc3+
- 2.Sd3#
- 1...Qxc2
- 2.Sd3#
- 1...dxe5
- 2.Rxe5#
- 1...Qc4
- 2.Sd3#
- 2.Sxc4#
- 1...Qc6
- 2.Sxc6#
- 1...Bg6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sxg6#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Sxg6#
- 1...Qc5!
- threat
- 1.S3c4?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 1...Qxc4
- 2.Sd3#
- 2.Sxc4#
- 1...dxe5
- 2.Rxe5#
- 1...Qc6
- 2.Sxc6#
- 1...Bg6
- 2.Sd3#
- 2.Sf3#
- 2.Sg4#
- 2.Sc6#
- 2.Sxg6#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Sxg6#
- 1...Qc5!
- threat
- 1.Sd5?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 1...Qc3+
- 2.Sd3#
- 1...Qxc2
- 2.Sd3#
- 1...dxe5
- 2.Rxe5#
- 1...Qc4
- 2.Sd3#
- 2.Sxc4#
- 1...Qc6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sxc6#
- 2.Sg6#
- 1...Bg6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sxg6#
- 1...Sg6
- 2.Sxg6#
- 1...Sc5!
- threat
- 1.Sd3?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sd5#
- 1...Qc5
- 2.Sd5#
- 1...Qc4
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sxc4#
- 2.Sg4#
- 2.Sd5#
- 1...Qc6
- 2.Sd5#
- 1...Sc5
- 2.Rxd6#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 1...Sg6!
- threat
- 1.Sf3?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sd5#
- 2.Sxf5#
- 1...Qxc2
- 2.Sxc2#
- 1...Qc5
- 2.Sd5#
- 1...Qc4
- 2.Sxc4#
- 1...Qc6
- 2.Sd5#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Bxf5#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Sxf5#
- 1...Qc3!
- threat
- 1.Sc6?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sd5#
- 2.Sxf5#
- 1...Qxc6
- 2.Sd5#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Bxf5#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Sxf5#
- 1...dxc6!
- threat
- 1.Sg6?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sd5#
- 2.Sxf5#
- 2.Bxf5#
- 1...Qxc2
- 2.Sxc2#
- 2.Sxf8#
- 1...Bxg6
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sd5#
- 2.Sxf5#
- 1...Sxg6
- 2.Bxf5#
- 1...Qc5
- 2.Sd5#
- 2.Sxf8#
- 1...Qc3
- 2.Sxf8#
- 2.Bxf5#
- 1...Qc4
- 2.Sxc4#
- 2.Sxf8#
- 2.Bxf5#
- 1...Qc6
- 2.Sd5#
- 2.Sxf8#
- 2.Bxf5#
- 1...Sc5
- 2.Bxf5#
- 2.Rxd6#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Sxf5#
- 2.Bxf5#
- 1...fxg6!
- threat
- 1.Bb3+?
- 1...d5
- 2.Bxd5#
- 1...Qc4!
- 1...d5
- 1.Sd1?
- Keys
- 1.S5c4!
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 2.Sxf5#
- 1...Qxc4
- 2.Sxc4#
- 1...Qc5
- 2.Sd5#
- 1...Qc6
- 2.Sd5#
- 1...Sc5
- 2.Rxd6#
- 1...Sg6
- 2.Bxf5#
- 1...d5
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sg4#
- 2.Sxd5#
- 2.Sxf5#
- threat
- 1.S5c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(i);N_GUARD::B(A),XP(b)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);S_CUTB(i)::B(A),XP(b)
- Tries
- Try
- S(D);
- Threat
- DUALS(6)
- Vars
- Q(j);CHECK::R(C)+S(H)
- Q(j);XB(A)::R(C)+S(H)
- P(c);OGATE,P_SPINP(c),XS(H)::R1(C),XP(c)
- Q(j);::R(C)+S(H),XQ(j)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);::R(C)+S(H),XS(k)
- Refutation
- Q(j);
- Try
- S(D);
- Threat
- DUALS(6)
- Vars
- Q(j);CHECK::R(C)+S(H)
- Q(j);XB(A)::R(C)+S(H)
- P(c);OGATE,P_SPINP(c),XS(H)::R1(C),XP(c)
- Q(j);::R(C)+S(H),XQ(j)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);::R(C)+S(H),XS(k)
- Refutation
- Q(j);
- Try
- S(D);
- Threat
- DUALS(6)
- Vars
- Q(j);CHECK::R(C)+S(H)
- Q(j);XB(A)::R(C)+S(H)
- P(c);OGATE,P_SPINP(c),XS(H)::R1(C),XP(c)
- Q(j);::R(C)+S(H),XQ(j)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);::R(C)+S(H),XS(k)
- Refutation
- Q(j);
- Try
- S(D);
- Threat
- DUALS(5)
- Vars
- P(c);OGATE,P_SPINP(c),XS(H)::R1(C),XP(c)
- Q(j);::R(C)+S(H),XQ(j)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);::R(C)+S(H),XS(k)
- Refutation
- Q(j);
- Try
- S(D);
- Threat
- DUALS(6)
- Vars
- Q(j);CHECK::R(C)+S(H)
- Q(j);XB(A)::R(C)+S(H)
- P(c);OGATE,P_SPINP(c),XS(H)::R1(C),XP(c)
- S(k);::R(C)+S(H),XS(k)
- Refutation
- S(f);
- Try
- S(H);
- Threat
- DUALS(6)
- Vars
- Q(j);::R(C)+S(D)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- Refutation
- S(k);
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- Q(j);XB(A)::R(C)+S(D),XQ(j)
- Q(j);::R(C)+S(D)
- Q(j);::R(C)+S(D),XQ(j)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);S_CUTB(i)::B(A),XP(b)
- Refutation
- Q(j);
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- Q(j);XS(H)::R(C)+S(D)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);S_CUTB(i)::B(A),XP(b)
- Refutation
- P(g);XS(H)
- Try
- S(H);
- Threat
- DUALS(8)
- Vars
- S(k);XS(H)::B(A),XP(b)
- Refutation
- P(h);XS(H)
- Try
- B(A);CHECK
- Vars
- P(c);P_SPINP(c)::B(A),XP(c)
- Refutation
- Q(j);P_SPINQ(j)
- Try
- Actual
- S(H);
- Threat
- DUALS(6)
- Vars
- Q(j);XS(H)::R(C)+S(D),XQ(j)
- Q(j);::R(C)+S(D)
- S(f);N_GUARD,S_CUTB(a)::R1(F),XP(c)
- S(k);S_CUTB(i)::B(A),XP(b)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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