MESON Chess Problem Database
Problem Display
PID: 194872 (K7/5n2/1Q1b3N/1N1Pp3/2B1kp2/6p1/n1P1p1P1/3bR1B1 w - - 0 1)
Cockburn, LH
Morning Post, 1918
#2
10 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Bxc2
- 2.Rxe2#
- 1...Ba3
- 2.Qg6#
- 1...Bb4
- 2.Qg6#
- 1...Bc5
- 2.Qg6#
- 1...Bc7
- 2.Qg6#
- 1...Be7
- 2.Qg6#
- 1...Bb8
- 2.Qg6#
- 1...Bf8
- 2.Qg6#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sg5
- 2.Sxd6#
- 1...Sxh6
- 2.Sxd6#
- 1...Sd8
- 2.Sxd6#
- 1...Sh8
- 2.Sxd6#
- 1...f3
- 2.Qe3#
- 1...Bxc2
- Tries
- 1.Kb7?
- 1...Bxc2
- 2.Rxe2#
- 1...Sxh6
- 2.Sxd6#
- 1...f3
- 2.Qe3#
- 1...Ba3
- 2.Qg6#
- 1...Bb4
- 2.Qg6#
- 1...Bc5
- 2.Qg6#
- 1...Bc7
- 2.Qg6#
- 1...Be7
- 2.Qg6#
- 1...Bb8
- 2.Qg6#
- 1...Bf8
- 2.Qg6#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sg5
- 2.Sxd6#
- 1...Sh8
- 2.Sxd6#
- 1...Sd8+!
- 1...Bxc2
- 1.Bf2?
- 1...Bxc2
- 2.Rxe2#
- 1...Sxh6
- 2.Sxd6#
- 1...f3
- 2.Qe3#
- 1...Sc1
- 2.Sc3#
- 1...Ba3
- 2.Qg6#
- 1...Bb4
- 2.Qg6#
- 1...Bc5
- 2.Qg6#
- 1...Bc7
- 2.Qg6#
- 1...Be7
- 2.Qg6#
- 1...Bb8
- 2.Qg6#
- 1...Bf8
- 2.Qg6#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sg5
- 2.Sxd6#
- 1...Sd8
- 2.Sxd6#
- 1...Sh8
- 2.Sxd6#
- 1...gxf2!
- 1...Bxc2
- 1.Bd4?
- 1...Bxc2
- 2.Rxe2#
- 1...Sxh6
- 2.Sxd6#
- 1...exd4
- 2.Qxd4#
- 1...Sc1
- 2.Sc3#
- 1...Ba3
- 2.Qg6#
- 1...Bb4
- 2.Qg6#
- 1...Bc5
- 2.Qg6#
- 1...Bc7
- 2.Qg6#
- 1...Be7
- 2.Qg6#
- 1...Bb8
- 2.Qg6#
- 1...Bf8
- 2.Qg6#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sg5
- 2.Sxd6#
- 1...Sd8
- 2.Sxd6#
- 1...Sh8
- 2.Sxd6#
- 1...f3!
- 1...Bxc2
- 1.Bxa2?
- threat
- 2.Sc3#
- 1...Sxh6
- 2.Sxd6#
- 1...f3
- 2.Qe3#
- 1...Bb4
- 2.Qg6#
- 1...Bxc2!
- threat
- 1.Bb3?
- 1...Sxh6
- 2.Sxd6#
- 1...f3
- 2.Qe3#
- 1...Sc1
- 2.Sc3#
- 1...Ba3
- 2.Qg6#
- 1...Bb4
- 2.Qg6#
- 1...Bc5
- 2.Qg6#
- 1...Bc7
- 2.Qg6#
- 1...Be7
- 2.Qg6#
- 1...Bb8
- 2.Qg6#
- 1...Bf8
- 2.Qg6#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sg5
- 2.Sxd6#
- 1...Sd8
- 2.Sxd6#
- 1...Sh8
- 2.Sxd6#
- 1...Bxc2!
- 1...Sxh6
- 1.Qf2?
- threat
- 2.Qf3#
- 1...Sxh6
- 2.Sxd6#
- 1...f3
- 2.Qe3#
- 2.Qxf3#
- 1...Sg5
- 2.Sxd6#
- 1...gxf2!
- threat
- 1.Qc5?
- threat
- 2.Bd3#
- 1...Bxc2
- 2.Rxe2#
- 1...f3
- 2.Qe3#
- 1...Sc1
- 2.Sc3#
- 1...Sb4
- 2.Sc3#
- 1...Bxc5!
- threat
- 1.Qa6?
- 1...Bxc2
- 2.Rxe2#
- 1...Sxh6
- 2.Sxd6#
- 1...Sc1
- 2.Sc3#
- 1...Ba3
- 2.Qg6#
- 1...Bb4
- 2.Qg6#
- 1...Bc5
- 2.Qg6#
- 1...Bc7
- 2.Qg6#
- 1...Be7
- 2.Qg6#
- 1...Bb8
- 2.Qg6#
- 1...Bf8
- 2.Qg6#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sg5
- 2.Sxd6#
- 1...Sd8
- 2.Sxd6#
- 1...Sh8
- 2.Sxd6#
- 1...f3!
- 1...Bxc2
- 1.Qc6?
- threat
- 2.Bd3#
- 1...Bxc2
- 2.Rxe2#
- 1...Sc1
- 2.Sc3#
- 1...Sb4
- 2.Sc3#
- 1...f3!
- threat
- 1.Qxd6?
- threat
- 2.Bd3#
- 2.Qg6#
- 1...Bxc2
- 2.Rxe2#
- 2.Qg6#
- 1...Sxd6
- 2.Sxd6#
- 1...Sxh6
- 2.Bd3#
- 1...Sc1
- 2.Sc3#
- 2.Qg6#
- 1...Sb4
- 2.Sc3#
- 2.Qg6#
- 1...Sh8
- 2.Bd3#
- 1...f3!
- threat
- 1.Qb7?
- threat
- 2.Bd3#
- 1...Bxc2
- 2.Rxe2#
- 1...Sc1
- 2.Sc3#
- 1...Sb4
- 2.Sc3#
- 1...f3!
- threat
- 1.Kb7?
- Keys
- 1.Qd8!
- 1...Bxc2
- 2.Rxe2#
- 1...Sxh6
- 2.Sxd6#
- 1...Sxd8
- 2.Sxd6#
- 1...f3
- 2.Qh4#
- 1...Sc1
- 2.Sc3#
- 1...Ba3
- 2.Bd3#
- 1...Bb4
- 2.Bd3#
- 1...Bc5
- 2.Bd3#
- 1...Bc7
- 2.Bd3#
- 1...Be7
- 2.Bd3#
- 1...Bb8
- 2.Bd3#
- 1...Bf8
- 2.Bd3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sg5
- 2.Sxd6#
- 1...Sh8
- 2.Sxd6#
- 1...Bxc2
- 1.Qd8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- B(h);OGATE::QAB(H)
- S(b);N_GUARD::S(F)
- S(b);N_GUARD::S(F),XS(b)
- S(i);N_GUARD::S(F),XB(h)
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- P(f);N_GUARD::QAR1(H)
- Tries
- Try
- K(J);S_FLIGHT
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- P(f);N_GUARD::QAR1(H)
- B(h);OGATE::QAB(H)
- S(b);N_GUARD::S(F)
- S(b);N_GUARD::S(F),XS(b)
- S(i);N_GUARD::S(F),XB(h)
- Refutation
- S(i);CHECK
- Try
- B(B);
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- P(f);N_GUARD::QAR1(H)
- S(b);N_GUARD::S(F)
- B(h);OGATE::QAB(H)
- S(b);N_GUARD::S(F),XS(b)
- S(i);N_GUARD::S(F),XB(h)
- Refutation
- P(d);XB(B)
- Try
- B(B);
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- P(g);OGATE,XB(B)::QAR1(H),XP(g)
- S(b);N_GUARD::S(F)
- B(h);OGATE::QAB(H)
- S(b);N_GUARD::S(F),XS(b)
- S(i);N_GUARD::S(F),XB(h)
- Refutation
- P(f);
- Try
- B(E);XS(b)
- Threat
- S(F)
- Vars
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- P(f);N_GUARD::QAR1(H)
- B(h);OGATE::QAB(H)
- Refutation
- B(a);XP(C)
- Try
- B(E);
- Vars
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- P(f);N_GUARD::QAR1(H)
- S(b);N_GUARD::S(F)
- B(h);OGATE::QAB(H)
- S(b);N_GUARD::S(F),XS(b)
- S(i);N_GUARD::S(F),XB(h)
- Refutation
- B(a);XP(C)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- S(i);N_GUARD::S(F),XB(h)
- Refutation
- P(d);XQ(H)
- Try
- Q(H);
- Threat
- B(E)
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- P(f);N_GUARD::QAR1(H)
- S(b);N_GUARD::S(F)
- Refutation
- B(h);XQ(H)
- Try
- Q(H);
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- S(b);N_GUARD::S(F)
- B(h);OGATE::QAB(H)
- S(b);N_GUARD::S(F),XS(b)
- S(i);N_GUARD::S(F),XB(h)
- Refutation
- P(f);
- Try
- Q(H);
- Threat
- B(E)
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- S(b);N_GUARD::S(F)
- Refutation
- P(f);
- Try
- Q(H);XB(h)
- Threat
- DUALS(2)
- Vars
- S(i);XQ(H)::S(F),XS(i)
- S(i);XS(I)::B(E)
- S(i);::B(E)
- Refutation
- P(f);
- Try
- Q(H);
- Threat
- B(E)
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- S(b);N_GUARD::S(F)
- Refutation
- P(f);
- Try
- Actual
- Q(H);
- Vars
- B(a);N_GUARD,XP(C)::R(A),XP(c)
- S(i);N_GUARD,XS(I)::S(F),XB(h)
- S(i);N_GUARD,XQ(H)::S(F),XB(h)
- P(f);OGATEB::QAR(H)
- S(b);N_GUARD::S(F)
- B(h);::B(E)
- S(b);N_GUARD::S(F),XS(b)
- S(i);N_GUARD::S(F),XB(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).