MESON Chess Problem Database
Problem Display
PID: 3087 (3B2K1/2n5/2Ppk2b/2p2Rpn/2N1B1P1/5N2/8/8 w - - 0 1)
Gevers, Raymond
BCPJ (May), 1919
#2
8 + 7
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sf6+
- 2.Rxf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...d5
- 2.Re5#
- 1...Bg7
- Tries
- 1.Kh7?
- 1...Sf6+
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...d5!
- 1...Sf6+
- 1.Sb2?
- 1...Sf6+
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...c4
- 2.Sd4#
- 1...d5!
- 1...Sf6+
- 1.Scd2?
- 1...Sf6+
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...c4
- 2.Sd4#
- 1...d5!
- 1...Sf6+
- 1.Sa3?
- 1...Sf6+
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...c4
- 2.Sd4#
- 1...d5!
- 1...Sf6+
- 1.Se3?
- 1...Sf6+
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...c4
- 2.Sd4#
- 1...d5!
- 1...Sf6+
- 1.Sa5?
- 1...Sf6+
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...c4
- 2.Sd4#
- 1...d5!
- 1...Sf6+
- 1.Sb6?
- 1...Sf6+
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sa8
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...c4
- 2.Sd4#
- 1...d5!
- 1...Sf6+
- 1.Kh7?
- Keys
- 1.Rf8!
- 1...Sf6+
- 2.Rxf6#
- 1...Bxf8
- 2.Sxg5#
- 1...Bg7
- 2.Sxg5#
- 1...Sg3
- 2.Rf6#
- 1...Sf4
- 2.Rf6#
- 1...Sg7
- 2.Rf6#
- 1...Sb5
- 2.Re8#
- 1...Sd5
- 2.Bf5#
- 1...Sa6
- 2.Re8#
- 1...Sa8
- 2.Re8#
- 1...Se8
- 2.Rxe8#
- 1...d5
- 2.Bf5#
- 1...Sf6+
- 1.Rf8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- P(d);N_GUARD::R1(E)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- P(a);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- P(a);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- P(a);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- P(a);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- P(a);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- S(B);
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::B(C)
- S(g);N_GUARD::B(C),XS(g)
- P(a);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- Actual
- R(E);
- Vars
- S(c);CHECK,N_GUARD::R1(E),XS(c)
- B(f);N_GUARD,XR(E)::S(A),XP(b)
- B(f);N_GUARD::S(A),XP(b)
- S(c);N_GUARD::R1(E)
- S(g);N_GUARD::R(E)
- S(g);SBLOCK::B(C)
- S(g);N_GUARD::R(E),XS(g)
- P(d);SBLOCK::B(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).