MESON Chess Problem Database
Problem Display
PID: 11310 (8/3p3K/4N2B/1B2bN1k/6q1/8/4Q3/8 w - - 0 1)
Bernard, Henry D'Oyly
Cape Times, 1938
#2
6 + 4
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2
- 2.Bxe2#
- 1...Qf3
- 2.Qxf3#
- 1...Ba1
- 2.Sf4#
- 1...Bb2
- 2.Sf4#
- 1...Bh2
- 2.Seg7#
- 1...Bc3
- 2.Sf4#
- 1...Bg3
- 2.Seg7#
- 1...Bd4
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 2.Seg7#
- 1...Bd6
- 2.Seg7#
- 1...Bf6
- 2.Sf4#
- 1...Bc7
- 2.Seg7#
- 1...Bg7
- 2.Sf4#
- 2.Sexg7#
- 1...Bb8
- 2.Seg7#
- 1...Bh8
- 2.Sf4#
- 1...dxe6
- 2.Be8#
- 1...d5
- 2.Be8#
- 1...d6
- 2.Be8#
- 1...Qxe2
- Tries
- 1.Ba4?
- 1...dxe6
- 2.Be8#
- 1...Qf3
- 2.Qxf3#
- 1...Ba1
- 2.Sf4#
- 1...Bb2
- 2.Sf4#
- 1...Bh2
- 2.Seg7#
- 1...Bc3
- 2.Sf4#
- 1...Bg3
- 2.Seg7#
- 1...Bd4
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 2.Seg7#
- 1...Bd6
- 2.Seg7#
- 1...Bf6
- 2.Sf4#
- 1...Bc7
- 2.Seg7#
- 1...Bg7
- 2.Sf4#
- 2.Sexg7#
- 1...Bb8
- 2.Seg7#
- 1...Bh8
- 2.Sf4#
- 1...d5
- 2.Be8#
- 1...d6
- 2.Be8#
- 1...Qxe2!
- 1...dxe6
- 1.Bxd7?
- threat
- 2.Be8#
- 1...Qf3
- 2.Qxf3#
- 1...Qxe2!
- threat
- 1.Bg5?
- 1...Qxe2
- 2.Bxe2#
- 1...Qf3
- 2.Qxf3#
- 1...Ba1
- 2.Sg3#
- 1...Bb2
- 2.Sg3#
- 1...Bh2
- 2.Sfg7#
- 1...Bc3
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 2.Sfg7#
- 1...Bd4
- 2.Sg3#
- 1...Bf4
- 2.Sfg7#
- 1...Bd6
- 2.Sfg7#
- 1...Bf6
- 2.Sg3#
- 1...Bc7
- 2.Sfg7#
- 1...Bg7
- 2.Sg3#
- 2.Sfxg7#
- 1...Bb8
- 2.Sfg7#
- 1...Bh8
- 2.Sg3#
- 1...d5
- 2.Be8#
- 1...d6
- 2.Be8#
- 1...dxe6!
- 1...Qxe2
- 1.Qd1?
- 1...dxe6
- 2.Be8#
- 1...Qe2
- 2.Bxe2#
- 2.Qxe2#
- 1...Qf3
- 2.Qxf3#
- 1...Ba1
- 2.Sf4#
- 1...Bb2
- 2.Sf4#
- 1...Bh2
- 2.Seg7#
- 1...Bc3
- 2.Sf4#
- 1...Bg3
- 2.Seg7#
- 1...Bd4
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 2.Seg7#
- 1...Bd6
- 2.Seg7#
- 1...Bf6
- 2.Sf4#
- 1...Bc7
- 2.Seg7#
- 1...Bg7
- 2.Sf4#
- 2.Sexg7#
- 1...Bb8
- 2.Seg7#
- 1...Bh8
- 2.Sf4#
- 1...d5
- 2.Be8#
- 1...d6
- 2.Be8#
- 1...Qxd1!
- 1...dxe6
- 1.Qf3?
- 1...dxe6
- 2.Be8#
- 1...Ba1
- 2.Sf4#
- 1...Bb2
- 2.Sf4#
- 1...Bh2
- 2.Seg7#
- 1...Bc3
- 2.Sf4#
- 1...Bg3
- 2.Seg7#
- 1...Bd4
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 2.Seg7#
- 1...Bd6
- 2.Seg7#
- 1...Bf6
- 2.Sf4#
- 1...Bc7
- 2.Seg7#
- 1...Bg7
- 2.Sf4#
- 2.Sexg7#
- 1...Bb8
- 2.Seg7#
- 1...Bh8
- 2.Sf4#
- 1...d5
- 2.Be8#
- 1...d6
- 2.Be8#
- 1...Qxf3!
- 1...dxe6
- 1.Qh2+?
- 1...Qh3
- 2.Be2#
- 2.Qxh3#
- 1...Qh4
- 2.Be2#
- 2.Qxh4#
- 1...Bxh2!
- 1...Qh3
- 1.Ba4?
- Keys
- 1.Sg5!
- 1...Qxe2
- 2.Bxe2#
- 1...Qf3
- 2.Qxf3#
- 1...Ba1
- 2.Qe8#
- 1...Bb2
- 2.Qe8#
- 1...Bh2
- 2.Qe8#
- 1...Bc3
- 2.Qe8#
- 1...Bg3
- 2.Qe8#
- 1...Bd4
- 2.Qe8#
- 1...Bf4
- 2.Qe8#
- 1...Bd6
- 2.Qe8#
- 1...Bf6
- 2.Qe8#
- 1...Bc7
- 2.Qe8#
- 1...Bg7
- 2.Qe8#
- 1...Bb8
- 2.Qe8#
- 1...Bh8
- 2.Qe8#
- 1...d5
- 2.Be8#
- 1...d6
- 2.Be8#
- 1...Qxe2
- 1.Sg5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 11
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(a);N_SPINQ(a),OGATE,XQ(A)::B(B),XQ(a)
- Q(a);OGATEB::QAB(A),XQ(a)
- B(b);N_GUARD::S(D)
- P(d);OGATE,XS(D)::B(B)
- P(d);OGATE::B(B)
- Tries
- Try
- B(B);
- Vars
- P(d);OGATE,XS(D)::B(B)
- Q(a);OGATEB::QAB(A),XQ(a)
- B(b);N_GUARD::S(D)
- P(d);OGATE::B(B)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- B(B);XP(d)
- Threat
- B(B)
- Vars
- Q(a);OGATEB::QAB(A),XQ(a)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- B(E);
- Vars
- Q(a);N_SPINQ(a),OGATE,XQ(A)::B(B),XQ(a)
- Q(a);OGATEB::QAB(A),XQ(a)
- B(b);N_GUARD::S(C)
- P(d);OGATE::B(B)
- Refutation
- P(d);XS(D)
- Try
- Q(A);
- Vars
- P(d);OGATE,XS(D)::B(B)
- Q(a);OGATEB::QAB(A),XQ(a)
- B(b);N_GUARD::S(D)
- P(d);OGATE::B(B)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- Q(A);
- Vars
- P(d);OGATE,XS(D)::B(B)
- B(b);N_GUARD::S(D)
- P(d);OGATE::B(B)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- Q(A);CHECK,N_PINQ(a)
- Refutation
- B(b);XQ(A)
- Try
- Actual
- S(D);
- Vars
- Q(a);N_SPINQ(a),OGATE,XQ(A)::B(B),XQ(a)
- Q(a);OGATEB::QAB(A),XQ(a)
- B(b);OGATE::QAB(A)
- P(d);OGATE::B(B)
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).