MESON Chess Problem Database
Problem Display
PID: 162392 (2Q5/1p6/1P3K2/3pp3/4kp1n/1Nb5/1N1p1P2/3B4 w - - 0 1)
Georgiev, Emil M
Chess, 1956
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxb2
- 2.Qc2#
- 1...Bb4
- 2.Qc2#
- 1...Bd4
- 2.Sxd2#
- 2.Qc2#
- 1...Ba5
- 2.Qc2#
- 1...Sg2
- 2.Qf5#
- 1...Sf3
- 2.Bc2#
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...f3
- 2.Qg4#
- 1...d4
- 2.Qxb7#
- 1...Bxb2
- Tries
- 1.Kg5?
- 1...Bxb2
- 2.Qc2#
- 1...d4
- 2.Qxb7#
- 1...Bb4
- 2.Qc2#
- 1...Bd4
- 2.Sxd2#
- 2.Qc2#
- 1...Ba5
- 2.Qc2#
- 1...Sg2
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...f3
- 2.Bc2#
- 2.Qg4#
- 1...Sf3+!
- 1...Bxb2
- 1.Bf3+?
- 1...Sxf3
- 2.Qf5#
- 1...Kxf3!
- 1...Sxf3
- 1.Qh3?
- threat
- 2.Bc2#
- 2.Qd3#
- 1...Bxb2
- 2.Bc2#
- 1...f3
- 2.Qg4#
- 2.Qxh4#
- 1...Sf3
- 2.Bc2#
- 2.Bxf3#
- 2.Qf5#
- 2.Qxf3#
- 2.Qh7#
- 1...d4!
- threat
- 1.Qg4?
- threat
- 2.Bc2#
- 2.Qe2#
- 1...Bd4
- 2.Sxd2#
- 2.Bc2#
- 1...Sg2
- 2.Bc2#
- 2.Bf3#
- 2.Qf3#
- 2.Qf5#
- 2.Qg6#
- 1...Sf3
- 2.Bc2#
- 2.Bxf3#
- 2.Qxf3#
- 2.Qf5#
- 2.Qg6#
- 1...Sf5
- 2.Bc2#
- 2.Bf3#
- 2.Qf3#
- 2.Qxf5#
- 1...d4!
- threat
- 1.Qe6?
- 1...f3
- 2.Qg4#
- 1...Bb4
- 2.Qxe5#
- 1...Bd4
- 2.Sxd2#
- 1...Ba5
- 2.Qxe5#
- 1...Sg2
- 2.Qf5#
- 1...Sf3
- 2.Bc2#
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...d4
- 2.Sc5#
- 2.Qxe5#
- 1...Bxb2!
- 1...f3
- 1.Qxc3?
- threat
- 2.Sxd2#
- 2.Sc5#
- 2.Bc2#
- 2.Qxe5#
- 2.Qc2#
- 2.Qd3#
- 1...f3
- 2.Qxe5#
- 2.Qe3#
- 1...Sf3
- 2.Sc5#
- 2.Bc2#
- 2.Bxf3#
- 2.Qc2#
- 2.Qd3#
- 2.Qxf3#
- 1...Sg6
- 2.Sxd2#
- 2.Sc5#
- 2.Bc2#
- 2.Bf3#
- 2.Qc2#
- 2.Qd3#
- 2.Qf3#
- 2.f3#
- 1...d4!
- threat
- 1.Qc4+?
- 1...Bd4
- 2.Sxd2#
- 2.Sc5#
- 2.Qd3#
- 2.Qc2#
- 1...d4
- 2.Sc5#
- 1...dxc4!
- 1...Bd4
- 1.Kg5?
- Keys
- 1.Qc5!
- 1...Bxb2
- 2.Qc2#
- 1...f3
- 2.Qe3#
- 1...Bb4
- 2.Qc2#
- 1...Bd4
- 2.Sxd2#
- 2.Qc2#
- 1...Ba5
- 2.Qc2#
- 1...Sg2
- 2.f3#
- 1...Sf3
- 2.Bc2#
- 1...Sf5
- 2.f3#
- 1...Sg6
- 2.f3#
- 1...d4
- 2.Qxe5#
- 1...Bxb2
- 1.Qc5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);OGATE,XS(B)::QAB(G)
- B(b);OGATE::QAB(G)
- S(e);N_GUARD::QAB1(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- P(d);OGATEB::QAR2(G)
- P(f);OGATEB::QAB(G),XP(h)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- B(b);OGATE,XS(B)::QAB(G)
- P(f);OGATEB::QAB(G),XP(h)
- B(b);OGATE::QAB(G)
- S(e);N_GUARD::QAB1(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- Refutation
- S(e);CHECK
- Try
- B(A);CHECK
- Vars
- S(e);SBLOCK,XB(A)::QAB1(G)
- Refutation
- K(c);S_FLIGHT,XB(A)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(b);XS(B)::B(A)
- Refutation
- P(f);
- Try
- Q(G);P_PINP(d)
- Threat
- DUALS(2)
- Refutation
- P(f);
- Try
- Q(G);P_PINP(g)
- Vars
- P(d);OGATEB::QAR2(G)
- B(b);N_GUARD::QAR1(G),XP(g)
- B(b);N_GUARD,SBLOCK::S(D),XP(a)
- S(e);N_GUARD::QAB1(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- Refutation
- B(b);XS(B)
- Try
- Q(G);XB(b)
- Threat
- DUALS(6)
- Refutation
- P(f);
- Try
- Q(G);CHECK
- Vars
- P(f);P_SPINP(f)::S(D)
- Refutation
- P(f);XQ(G)
- Try
- Actual
- Q(G);
- Vars
- B(b);OGATE,XS(B)::QAB(G)
- P(d);N_GUARD::QAR1(G)
- B(b);OGATE::QAB(G)
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::B(A)
- P(f);OGATE::QAR1(G),XP(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).