MESON Chess Problem Database
Problem Display
PID: 78694 (8/5B2/2p2Rpr/1n2B1p1/2N1k1Pp/3R3K/2P2p2/5nbN w - - 0 1)
Gevers, Raymond
Die Schwalbe, 1929
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Bh2
- 2.Sxf2#
- 1...Sd2
- 2.Re3#
- 1...Sh2
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sg3
- 2.Re3#
- 1...Sa3
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Sc7
- 2.Rd4#
- 1...c5
- 2.Bd5#
- 1...Rh5
- Tries
- 1.Kg2?
- 1...Se3+
- 2.Rxe3#
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Bh2
- 2.Sxf2#
- 1...Sd2
- 2.Re3#
- 1...Sh2
- 2.Re3#
- 1...Sg3
- 2.Re3#
- 1...Sa3
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Sc7
- 2.Rd4#
- 1...c5
- 2.Bd5#
- 1...h3+!
- 1...Se3+
- 1.Sg3+?
- 1...Sxg3
- 2.Re3#
- 1...hxg3+!
- 1...Sxg3
- 1.Ba1?
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Bh2
- 2.Sxf2#
- 1...Sd2
- 2.Sxd2#
- 2.Re3#
- 1...Sh2
- 2.Sd2#
- 2.Re3#
- 1...Se3
- 2.Sd2#
- 2.Rxe3#
- 1...Sg3
- 2.Sd2#
- 2.Re3#
- 1...Sa3
- 2.Sd6#
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Sxd6#
- 2.Rd4#
- 1...Sa7
- 2.Sd6#
- 2.Rd4#
- 1...Sc7
- 2.Sd6#
- 2.Rd4#
- 1...c5
- 2.Bd5#
- 1...Sc3!
- 1...Rh5
- 1.Bb2?
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Bh2
- 2.Sxf2#
- 1...Sd2
- 2.Sxd2#
- 2.Re3#
- 1...Sh2
- 2.Sd2#
- 2.Re3#
- 1...Se3
- 2.Sd2#
- 2.Rxe3#
- 1...Sg3
- 2.Sd2#
- 2.Re3#
- 1...Sa3
- 2.Sd6#
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Sxd6#
- 2.Rd4#
- 1...Sa7
- 2.Sd6#
- 2.Rd4#
- 1...Sc7
- 2.Sd6#
- 2.Rd4#
- 1...c5
- 2.Bd5#
- 1...Sc3!
- 1...Rh5
- 1.Bc3?
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Bh2
- 2.Sxf2#
- 1...Sd2
- 2.Sxd2#
- 2.Re3#
- 1...Sh2
- 2.Sd2#
- 2.Re3#
- 1...Se3
- 2.Sd2#
- 2.Rxe3#
- 1...Sg3
- 2.Sd2#
- 2.Re3#
- 1...Sa3
- 2.Sd6#
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Sxd6#
- 2.Rd4#
- 1...Sa7
- 2.Sd6#
- 2.Rd4#
- 1...Sc7
- 2.Sd6#
- 2.Rd4#
- 1...c5
- 2.Bd5#
- 1...Sxc3!
- 1...Rh5
- 1.Be8?
- threat
- 2.Bxc6#
- 1...Sd4
- 2.Rxd4#
- 1...Sc3
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Sc7
- 2.Rd4#
- 1...c5
- 2.Bc6#
- 1...Se3!
- threat
- 1.Rxf2?
- 1...Bxf2
- 2.Sxf2#
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Sd2
- 2.Re3#
- 1...Sh2
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sg3
- 2.Re3#
- 1...Sa3
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Sc7
- 2.Rd4#
- 1...c5
- 2.Bd5#
- 1...Bh2!
- 1...Bxf2
- 1.Rfd6?
- 1...Se3
- 2.Rxe3#
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Bh2
- 2.Sxf2#
- 1...Sd2
- 2.Re3#
- 1...Sh2
- 2.Re3#
- 1...Sg3
- 2.Re3#
- 1...Sa3
- 2.R6d4#
- 1...Sc3
- 2.R6d4#
- 1...Sd4
- 2.R6xd4#
- 1...Sa7
- 2.R6d4#
- 1...Sc7
- 2.R6d4#
- 1...c5
- 2.Bd5#
- 1...Sxd6!
- 1...Se3
- 1.Re6?
- threat
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Se3
- 2.Sd2#
- 1...Bh2
- 2.Sxf2#
- 2.Bxh2#
- 2.Bg3#
- 1...Sh2
- 2.Sd2#
- 2.Bxh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Sg3
- 2.Sd2#
- 2.Bxg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Sd6
- 2.Sxd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bxd6#
- 1...Sc7
- 2.Sd6#
- 2.Bxc7#
- 1...Sd4!
- threat
- 1.Kg2?
- Keys
- 1.Bf4!
- 1...gxf4
- 2.Re6#
- 1...Se3
- 2.Sd2#
- 1...Rh5
- 2.Bxg6#
- 1...Rh7
- 2.Bxg6#
- 1...Rh8
- 2.Bxg6#
- 1...Bh2
- 2.Sxf2#
- 1...Sd2
- 2.Sxd2#
- 1...Sh2
- 2.Sd2#
- 1...Sg3
- 2.Sd2#
- 1...Sa3
- 2.Sd6#
- 1...Sc3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sa7
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...c5
- 2.Bd5#
- 1...gxf4
- 1.Bf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(j);N_GUARD::B(I),XP(i)
- B(b);N_GUARD::S(A),XP(c)
- S(a);N_GUARD::R1(C)
- S(a);N_GUARD::R1(C),XS(a)
- S(f);N_GUARD::R1(C)
- S(f);N_GUARD::R1(C),XS(f)
- P(h);N_GUARD::B(I)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- S(a);CHECK,N_GUARD::R1(C),XS(a)
- R(j);N_GUARD::B(I),XP(i)
- B(b);N_GUARD::S(A),XP(c)
- S(a);N_GUARD::R1(C)
- S(f);N_GUARD::R1(C)
- S(f);N_GUARD::R1(C),XS(f)
- P(h);N_GUARD::B(I)
- Refutation
- P(e);CHECK
- Try
- S(A);CHECK
- Vars
- S(a);XS(A)::R1(C)
- Refutation
- P(e);CHECK,XS(A)
- Try
- B(G);
- Vars
- R(j);N_GUARD::B(I),XP(i)
- B(b);N_GUARD::S(A),XP(c)
- S(f);N_GUARD::R1(C),XS(f)
- P(h);N_GUARD::B(I)
- Refutation
- S(f);
- Try
- B(G);
- Vars
- R(j);N_GUARD::B(I),XP(i)
- B(b);N_GUARD::S(A),XP(c)
- S(f);N_GUARD::R1(C),XS(f)
- P(h);N_GUARD::B(I)
- Refutation
- S(f);
- Try
- B(G);
- Vars
- R(j);N_GUARD::B(I),XP(i)
- B(b);N_GUARD::S(A),XP(c)
- S(f);N_GUARD::R1(C),XS(f)
- P(h);N_GUARD::B(I)
- Refutation
- S(f);XB(G)
- Try
- B(I);
- Threat
- B(I),XP(h)
- Vars
- S(f);N_GUARD::R1(C),XS(f)
- S(f);N_GUARD::R1(C)
- P(h);::B(I)
- Refutation
- S(a);
- Try
- R(H);XP(c)
- Vars
- B(b);XR(H)::S(A),XB(b)
- R(j);N_GUARD::B(I),XP(i)
- S(a);N_GUARD::R1(C)
- S(a);N_GUARD::R1(C),XS(a)
- S(f);N_GUARD::R1(C)
- S(f);N_GUARD::R1(C),XS(f)
- P(h);N_GUARD::B(I)
- Refutation
- B(b);
- Try
- R(H);
- Vars
- S(a);N_GUARD::R1(C),XS(a)
- R(j);N_GUARD::B(I),XP(i)
- B(b);N_GUARD::S(A),XP(c)
- S(a);N_GUARD::R1(C)
- S(f);N_GUARD::R1(H)
- S(f);N_GUARD::R1(H),XS(f)
- P(h);N_GUARD::B(I)
- Refutation
- S(f);XR(H)
- Try
- R(H);
- Threat
- DUALS(5)
- Vars
- S(a);N_GUARD::S(E)
- Refutation
- S(f);
- Try
- Actual
- B(G);
- Vars
- P(g);SBLOCK,XB(G)::R(H)
- S(a);N_GUARD::S(E)
- R(j);N_GUARD::B(I),XP(i)
- B(b);N_GUARD::S(A),XP(c)
- S(a);N_GUARD::S(E),XS(a)
- S(f);N_GUARD::S(E)
- S(f);N_GUARD::S(E),XS(f)
- P(h);N_GUARD::B(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).