MESON Chess Problem Database
Problem Display
PID: 2987 (B3N3/4R2p/1p4pr/1n1qr1pn/3pk1P1/QN1b4/2p2R2/2B3K1 w - - 0 1)
Bernard, Henry D'Oyly
Williams, Philip Hamilton
Source?, 1916
#2
9 + 13
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Bxc6#
- 1...Qb7
- 2.Bxb7#
- 1...Qxa8
- 2.Qxa8#
- 1...Re6
- 2.Rxe6#
- 1...Rxe7
- 2.Qxe7#
- 1...Bf1
- 2.Sd2#
- 1...Be2
- 2.Sd2#
- 1...Bc4
- 2.Sd2#
- 1...Sxa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...Qc6
- Tries
- 1.Bc6?
- 1...Rxe7
- 2.Qxe7#
- 1...Sxa3
- 2.Sd6#
- 1...Re6
- 2.Rxe6#
- 1...Bf1
- 2.Sd2#
- 1...Be2
- 2.Sd2#
- 1...Bc4
- 2.Sd2#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...Qxc6!
- 1...Rxe7
- 1.Bb7?
- 1...Rxe7
- 2.Qxe7#
- 1...Sxa3
- 2.Sd6#
- 1...Qc6
- 2.Bxc6#
- 1...Re6
- 2.Rxe6#
- 1...Bf1
- 2.Sd2#
- 1...Be2
- 2.Sd2#
- 1...Bc4
- 2.Sd2#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...Qxb7!
- 1...Rxe7
- 1.Rf1?
- 1...Qxa8
- 2.Qxa8#
- 1...Rxe7
- 2.Qxe7#
- 1...Sxa3
- 2.Sd6#
- 1...Qc6
- 2.Bxc6#
- 1...Qb7
- 2.Bxb7#
- 1...Re6
- 2.Rxe6#
- 1...Be2
- 2.Sd2#
- 1...Bc4
- 2.Sd2#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...Bxf1!
- 1...Qxa8
- 1.Re6?
- 1...Qxa8
- 2.Qxa8#
- 1...Sxa3
- 2.Sd6#
- 1...Qc6
- 2.Bxc6#
- 1...Qb7
- 2.Bxb7#
- 1...Bf1
- 2.Sd2#
- 1...Be2
- 2.Sd2#
- 1...Bc4
- 2.Sd2#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...Rxe6!
- 1...Qxa8
- 1.gxh5?
- threat
- 2.Sf6#
- 1...Rxe7
- 2.Qxe7#
- 1...Re6
- 2.Rxe6#
- 1...Bf1
- 2.Sd2#
- 1...Be2
- 2.Sd2#
- 1...Bc4
- 2.Sd2#
- 1...gxh5!
- threat
- 1.Bc6?
- Keys
- 1.Sa1!
- 1...Qxa8
- 2.Qxa8#
- 1...Rxe7
- 2.Qxe7#
- 1...Sxa3
- 2.Sd6#
- 1...Qc6
- 2.Bxc6#
- 1...Qb7
- 2.Bxb7#
- 1...Re6
- 2.Rxe6#
- 1...Bf1
- 2.Qf3#
- 1...Be2
- 2.Rxe2#
- 1...Bc4
- 2.Qf3#
- 1...Sc3
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...Qxa8
- 1.Sa1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(f);OGATEB::B(H),XQ(f)
- Q(f);N_SPINQ(f),OGATE,XB(H)::QAB(D),XQ(f)
- R(g);OGATEB::R(G),XR(g)
- R(g);N_SPINR(g),OGATE,XR(G)::QAR(D),XR(g)
- B(b);::S(E)
- S(e);N_GUARD,XQ(D)::S(I)
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
- Tries
- Try
- B(H);
- Vars
- R(g);N_SPINR(g),OGATE,XR(G)::QAR(D),XR(g)
- S(e);N_GUARD,XQ(D)::S(I)
- R(g);OGATEB::R(G),XR(g)
- B(b);::S(E)
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- Q(f);N_SPINQ(f),XB(H)
- Try
- B(H);
- Vars
- R(g);N_SPINR(g),OGATE,XR(G)::QAR(D),XR(g)
- S(e);N_GUARD,XQ(D)::S(I)
- Q(f);OGATEB::B(H),XQ(f)
- R(g);OGATEB::R(G),XR(g)
- B(b);::S(E)
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- Q(f);N_SPINQ(f),XB(H)
- Try
- R(C);
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(H)::QAB(D),XQ(f)
- R(g);N_SPINR(g),OGATE,XR(G)::QAR(D),XR(g)
- S(e);N_GUARD,XQ(D)::S(I)
- Q(f);OGATEB::B(H),XQ(f)
- R(g);OGATEB::R(G),XR(g)
- B(b);::S(E)
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- B(b);XR(C)
- Try
- R(G);
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(H)::QAB(D),XQ(f)
- S(e);N_GUARD,XQ(D)::S(I)
- Q(f);OGATEB::B(H),XQ(f)
- B(b);::S(E)
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
- Refutation
- R(g);N_SPINR(g),XR(G)
- Try
- P(F);XS(i)
- Threat
- S(I)
- Vars
- R(g);N_SPINR(g),OGATE,XR(G)::QAR(D),XR(g)
- R(g);OGATEB::R(G),XR(g)
- B(b);::S(E)
- Refutation
- P(k);XP(F)
- Try
- Actual
- S(E);
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(H)::QAB(D),XQ(f)
- R(g);N_SPINR(g),OGATE,XR(G)::QAR(D),XR(g)
- S(e);N_GUARD,XQ(D)::S(I)
- Q(f);OGATEB::B(H),XQ(f)
- R(g);OGATEB::R(G),XR(g)
- B(b);OGATE::QAB1(D)
- B(b);N_GUARD::R(C),XB(b)
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
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).