MESON Chess Problem Database
Problem Display
PID: 3066 (7R/2n3p1/1p3rPb/1p2R1P1/bP1P4/P4k2/Q1p2N1P/2B2K2 w - - 0 1)
Bernard, Henry D'Oyly
Source?, 1918
#2
12 + 9
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Re3#
- 1...Rf5
- 2.Rxf5#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rxg6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Bxg5
- 2.Rh3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Rf4
- Tries
- 1.Rc5?
- threat
- 2.Rc3#
- 1...Bxg5
- 2.Rh3#
- 1...Rc6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Sd5
- 2.Qxd5#
- 1...bxc5!
- threat
- 1.Rh7?
- 1...Rxg6
- 2.Rf5#
- 1...Bxg5
- 2.Rh3#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Rf8!
- 1...Rxg6
- 1.Ra8?
- 1...Rxg6
- 2.Rf5#
- 1...Sxa8
- 2.Qd5#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Bxg5!
- 1...Rxg6
- 1.Rb8?
- 1...Rxg6
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Bxg5!
- 1...Rxg6
- 1.Rc8?
- 1...Rxg6
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Rc3#
- 2.Qd5#
- 1...Se6
- 2.Rc3#
- 2.Qd5#
- 1...Sa8
- 2.Rc3#
- 2.Qd5#
- 1...Se8
- 2.Rc3#
- 2.Qd5#
- 1...Bxg5!
- 1...Rxg6
- 1.Rd8?
- 1...Rxg6
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Bxg5!
- 1...Rxg6
- 1.Rhe8?
- 1...Rxg6
- 2.Rf5#
- 1...Sxe8
- 2.Qd5#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Bxg5!
- 1...Rxg6
- 1.Rg8?
- 1...Rxg6
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Bxg5!
- 1...Rxg6
- 1.Qc4?
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qc3#
- 1...Bxg5
- 2.Rh3#
- 2.Qe2#
- 1...Rc6
- 2.Rf5#
- 2.Qe2#
- 2.Qd3#
- 1...Sd5
- 2.Qe2#
- 2.Qxd5#
- 1...bxc4!
- threat
- 1.Qe6?
- threat
- 2.Qh3#
- 2.Qg4#
- 1...Rxe6
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Rf4
- 2.Re3#
- 2.Qh3#
- 1...Sxe6!
- threat
- 1.Qf7?
- 1...Bxg5
- 2.Rh3#
- 1...Rf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Rf4
- 2.Re3#
- 2.Qxf4#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qb7#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Rxf7!
- 1...Bxg5
- 1.Qa1?
- threat
- 2.Qc3#
- 1...Bxg5
- 2.Rh3#
- 1...Rc6
- 2.Rf5#
- 1...Sd5!
- threat
- 1.Qb2?
- threat
- 2.Qc3#
- 1...Bxg5
- 2.Rh3#
- 1...Rc6
- 2.Rf5#
- 1...Sd5!
- threat
- 1.Qxc2?
- threat
- 2.Qd3#
- 2.Qe4#
- 2.Qe2#
- 2.Qc3#
- 1...Bxg5
- 2.Rh3#
- 2.Qe4#
- 2.Qe2#
- 1...Rf4
- 2.Re3#
- 2.Qd3#
- 2.Qe2#
- 2.Qc3#
- 1...Rc6
- 2.Rf5#
- 2.Qd3#
- 2.Qe4#
- 2.Qf5#
- 2.Qe2#
- 1...Sd5
- 2.Qe4#
- 2.Qe2#
- 1...Bxc2!
- threat
- 1.gxh6?
- 1...Rxg6
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Rxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...gxh6!
- 1...Rxg6
- 1.Rc5?
- Keys
- 1.Qg8!
- 1...Rxg6
- 2.Rf5#
- 1...Bxg5
- 2.Rh3#
- 1...Rf5
- 2.Rxf5#
- 1...Rf4
- 2.Re3#
- 1...Rc6
- 2.Rf5#
- 1...Rd6
- 2.Rf5#
- 1...Re6
- 2.Rf5#
- 1...Rf7
- 2.Qxf7#
- 1...Rf8
- 2.Qxf8#
- 1...Bb3
- 2.Qxb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Se6
- 2.Qa8#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Rxg6
- 1.Qg8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I),XR(f)
- R(f);N_GUARD::R(I)
- R(f);N_GUARD,XP(K)::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- B(g);OGATE,XP(J)::R(L)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Tries
- Try
- R(I);
- Threat
- R(I)
- Vars
- B(g);OGATE,XP(J)::R(L)
- R(f);N_GUARD::R(I)
- S(h);N_GUARD::QAB(C),XS(h)
- Refutation
- P(e);XR(I)
- Try
- R(L);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- B(g);OGATE,XP(J)::R(L)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Refutation
- R(f);
- Try
- R(L);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- S(h);N_GUARD,XR(L)::QAB(C)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Refutation
- B(g);XP(J)
- Try
- R(L);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Refutation
- B(g);XP(J)
- Try
- R(L);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- Refutation
- B(g);XP(J)
- Try
- R(L);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Refutation
- B(g);XP(J)
- Try
- R(L);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- S(h);N_GUARD,XR(L)::QAB(C)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Refutation
- B(g);XP(J)
- Try
- R(L);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Refutation
- B(g);XP(J)
- Try
- Q(C);
- Threat
- DUALS(3)
- Refutation
- P(d);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD,XQ(C)::R(I)
- Refutation
- S(h);XQ(C)
- Try
- Q(C);P_PINR(f)
- Vars
- B(g);OGATE,XP(J)::R(L)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- S(h);OGATE::QAB(C)
- Refutation
- R(f);N_SPINR(f),XQ(C)
- Try
- Q(C);
- Threat
- QAR(C)
- Vars
- B(g);OGATE,XP(J)::R(L)
- R(f);N_GUARD::R(I)
- Refutation
- S(h);
- Try
- Q(C);
- Threat
- QAR(C)
- Vars
- B(g);OGATE,XP(J)::R(L)
- R(f);N_GUARD::R(I)
- Refutation
- S(h);
- Try
- Q(C);XP(a)
- Threat
- DUALS(4)
- Refutation
- B(c);XQ(C)
- Try
- P(J);XB(g)
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- R(f);OGATEB::R(L),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- Refutation
- P(i);XP(J)
- Try
- Actual
- Q(C);
- Vars
- R(f);N_GUARD,XP(K)::R(I)
- B(g);OGATE,XP(J)::R(L)
- R(f);N_GUARD::R(I),XR(f)
- R(f);SBLOCK::R1(I)
- R(f);N_GUARD::R(I)
- R(f);OGATEB::QAR(C),XR(f)
- B(c);N_GUARD::QAR(C),XB(c)
- S(h);N_GUARD::QAB(C),XS(h)
- S(h);N_GUARD::QAB(C)
- S(h);N_GUARD,S_CUTR(f)::QAB(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).