MESON Chess Problem Database
Problem Display
PID: 153999 (8/Kp1N4/1p4p1/p3PqP1/P2kpn2/BQ6/2PP2B1/b3R1N1 w - - 0 1)
Barnes, Barry Peter
The Problemist, 1978
#2
12 + 9
| 133 | The Problemist Supplement | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Rxe4#
- 1...Qg4
- 2.Rxe4#
- 1...Qe6
- 2.Rxe4#
- 1...Qxd7
- 2.Rxe4#
- 1...Qxg5
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qf7
- 2.Rxe4#
- 1...Qf8
- 2.Rxe4#
- 1...Bb2
- 2.Bxb2#
- 1...Bc3
- 2.dxc3#
- 1...Se2
- 2.Sxe2#
- 1...Sxg2
- 2.Se2#
- 1...Sd3
- 2.Se2#
- 1...Sh3
- 2.Se2#
- 1...Sd5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Se6
- 2.Se2#
- 1...e3
- 2.dxe3#
- 1...b5
- 2.Bc5#
- 1...Qh3
- Tries
- 1.Bh1?
- 1...Qxd7
- 2.Rxe4#
- 1...Qxg5
- 2.Rxe4#
- 1...Qh3
- 2.Rxe4#
- 1...Qg4
- 2.Rxe4#
- 1...Qe6
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qf7
- 2.Rxe4#
- 1...Qf8
- 2.Rxe4#
- 1...Bb2
- 2.Bxb2#
- 1...Bc3
- 2.dxc3#
- 1...Se2
- 2.Sxe2#
- 1...Sg2
- 2.Se2#
- 1...Sd3
- 2.Se2#
- 1...Sh3
- 2.Se2#
- 1...Sd5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Se6
- 2.Se2#
- 1...e3
- 2.dxe3#
- 1...b5
- 2.Bc5#
- 1...Qxe5!
- 1...Qxd7
- 1.Bf3?
- 1...Qxd7
- 2.Rxe4#
- 1...Qxg5
- 2.Rxe4#
- 1...exf3
- 2.Sxf3#
- 1...Qh3
- 2.Rxe4#
- 1...Qg4
- 2.Rxe4#
- 1...Qe6
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qf7
- 2.Rxe4#
- 1...Qf8
- 2.Rxe4#
- 1...Bb2
- 2.Bxb2#
- 1...Bc3
- 2.dxc3#
- 1...Se2
- 2.Sxe2#
- 1...Sg2
- 2.Se2#
- 1...Sd3
- 2.Se2#
- 1...Sh3
- 2.Se2#
- 1...Sd5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Se6
- 2.Se2#
- 1...e3
- 2.dxe3#
- 1...b5
- 2.Bc5#
- 1...Qxe5!
- 1...Qxd7
- 1.Bd6?
- 1...Qxd7
- 2.Rxe4#
- 1...Qxe5
- 2.Bxe5#
- 1...Qxg5
- 2.Rxe4#
- 1...Sxg2
- 2.Se2#
- 1...Qh3
- 2.Rxe4#
- 1...Qg4
- 2.Rxe4#
- 1...Qe6
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qf7
- 2.Rxe4#
- 1...Qf8
- 2.Rxe4#
- 1...Bc3
- 2.dxc3#
- 1...Se2
- 2.Sxe2#
- 1...Sd3
- 2.Se2#
- 1...Sh3
- 2.Se2#
- 1...Sd5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Se6
- 2.Se2#
- 1...e3
- 2.dxe3#
- 1...b5
- 2.Bc5#
- 1...Bb2!
- 1...Qxd7
- 1.Qe3+?
- 1...Kc4
- 2.Sxb6#
- 1...Kd5!
- 1...Kc4
- 1.Qxb6+?
- 1...Kc4
- 2.Qc5#
- 1...Kd5!
- 1...Kc4
- 1.c4?
- 1...Qxd7
- 2.Rxe4#
- 1...Qxg5
- 2.Rxe4#
- 1...Sxg2
- 2.Se2#
- 1...Bc3
- 2.Qxc3#
- 1...Bb2
- 2.Bxb2#
- 1...Qh3
- 2.Rxe4#
- 1...Qg4
- 2.Rxe4#
- 1...Qe6
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qf7
- 2.Rxe4#
- 1...Qf8
- 2.Rxe4#
- 1...Se2
- 2.Sxe2#
- 1...Sd3
- 2.Se2#
- 1...Sh3
- 2.Se2#
- 1...Sd5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Se6
- 2.Se2#
- 1...e3
- 2.dxe3#
- 1...b5
- 2.Bc5#
- 1...Qxe5!
- 1...Qxd7
- 1.Bh1?
- Keys
- 1.Sxb6!
- 1...Kxe5
- 2.Sf3#
- 1...Qxe5
- 2.Qc4#
- 2.Qe3#
- 1...Qxg5
- 2.Rxe4#
- 1...Sxg2
- 2.Qd5#
- 1...Qh3
- 2.Rxe4#
- 1...Qg4
- 2.Rxe4#
- 1...Qe6
- 2.Rxe4#
- 1...Qd7
- 2.Rxe4#
- 1...Qc8
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qf7
- 2.Rxe4#
- 1...Qf8
- 2.Rxe4#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Se2
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 1...Sh3
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sh5
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...e3
- 2.Qxe3#
- 1...Kxe5
- 1.Sxb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 10
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(f);N_GUARD::R1(A),XP(c)
- Q(f);N_GUARD,XS(L)::R1(A),XP(c)
- Q(f);N_GUARD,XP(J)::R1(A),XP(c)
- B(a);N_GUARD::B(F),XB(a)
- B(a);OGATE::P(D),XB(a)
- S(d);N_GUARD::S(B),XS(d)
- S(d);N_GUARD,XB(E)::S(B)
- S(d);N_GUARD::S(B)
- P(c);OGATE::P(D),XP(c)
- P(g);N_GUARD::B(F)
- Tries
- Try
- B(E);
- Vars
- Q(f);N_GUARD,XS(L)::R1(A),XP(c)
- Q(f);N_GUARD,XP(J)::R1(A),XP(c)
- Q(f);N_GUARD::R1(A),XP(c)
- B(a);N_GUARD::B(F),XB(a)
- B(a);OGATE::P(D),XB(a)
- S(d);N_GUARD::S(B),XS(d)
- S(d);N_GUARD::S(B)
- P(c);OGATE::P(D),XP(c)
- P(g);N_GUARD::B(F)
- Refutation
- Q(f);XP(I)
- Try
- B(E);
- Vars
- Q(f);N_GUARD,XS(L)::R1(A),XP(c)
- Q(f);N_GUARD,XP(J)::R1(A),XP(c)
- P(c);XB(E)::S(B),XP(c)
- Q(f);N_GUARD::R1(A),XP(c)
- B(a);N_GUARD::B(F),XB(a)
- B(a);OGATE::P(D),XB(a)
- S(d);N_GUARD::S(B),XS(d)
- S(d);N_GUARD::S(B)
- P(c);OGATE::P(D),XP(c)
- P(g);N_GUARD::B(F)
- Refutation
- Q(f);XP(I)
- Try
- B(F);
- Vars
- Q(f);N_GUARD,XS(L)::R1(A),XP(c)
- Q(f);OGATE,XP(I)::B(F),XQ(f)
- Q(f);N_GUARD,XP(J)::R1(A),XP(c)
- S(d);N_GUARD,XB(E)::S(B)
- Q(f);N_GUARD::R1(A),XP(c)
- B(a);OGATE::P(D),XB(a)
- S(d);N_GUARD::S(B),XS(d)
- S(d);N_GUARD::S(B)
- P(c);OGATE::P(D),XP(c)
- P(g);N_GUARD::B(F)
- Refutation
- B(a);
- Try
- Q(G);CHECK
- Vars
- K(b);P-FLIGHT::S(L),XP(g)
- Refutation
- K(b);P-FLIGHT,P_SPINP(c)
- Try
- Q(G);CHECK,XP(g)
- Vars
- K(b);P-FLIGHT::QAR1(G)
- Refutation
- K(b);P-FLIGHT,P_SPINP(c)
- Try
- P(C);
- Vars
- Q(f);N_GUARD,XS(L)::R1(A),XP(c)
- Q(f);N_GUARD,XP(J)::R1(A),XP(c)
- S(d);N_GUARD,XB(E)::S(B)
- B(a);N_GUARD::QAB1(G),XB(a)
- B(a);N_GUARD::B(F),XB(a)
- Q(f);N_GUARD::R1(A),XP(c)
- S(d);N_GUARD::S(B),XS(d)
- S(d);N_GUARD::S(B)
- P(c);OGATE::P(D),XP(c)
- P(g);N_GUARD::B(F)
- Refutation
- Q(f);XP(I)
- Try
- Actual
- S(L);XP(g)
- Vars
- K(b);P_SPINP(c),S_FLIGHT,XP(I)::S(B)
- Q(f);N_GUARD,XP(J)::R1(A),XP(c)
- S(d);N_GUARD,XB(E)::QAR1(G)
- Q(f);N_GUARD::R1(A),XP(c)
- B(a);N_GUARD::QAB(G),XB(a)
- B(a);N_GUARD::QAB1(G),XB(a)
- S(d);N_GUARD::QAR1(G)
- S(d);N_GUARD::QAR1(G),XS(d)
- P(c);::QAB1(G),XP(c)
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).