MESON Chess Problem Database
Problem Display
PID: 58721 (8/3K4/3R4/3pk3/1nPn1pP1/8/3N1N2/6B1 w - - 0 1)
Groeneveld, Cornelis
Chess Life, 1960
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Sd3#
- 1...Sbc2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sa6
- 2.Sd3#
- 1...Sbc6
- 2.Sd3#
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sdc6
- 2.Sf3#
- 1...f3
- 2.Bh2#
- 1...dxc4
- 2.Sxc4#
- 1...Sa2
- Tries
- 1.Bh2?
- 1...dxc4
- 2.Sxc4#
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sdc6
- 2.Sf3#
- 1...Sa2
- 2.Sd3#
- 1...Sbc2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sa6
- 2.Sd3#
- 1...Sbc6
- 2.Sd3#
- 1...Se6!
- 1...dxc4
- 1.Rg6?
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sdc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...f3
- 2.Bh2#
- 1...Sa2
- 2.Sd3#
- 1...Sbc2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sa6
- 2.Sd3#
- 1...Sbc6
- 2.Sd3#
- 1...dxc4!
- 1...Sdc2
- 1.Rh6?
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sdc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...f3
- 2.Bh2#
- 1...Sa2
- 2.Sd3#
- 1...Sbc2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sa6
- 2.Sd3#
- 1...Sbc6
- 2.Sd3#
- 1...dxc4!
- 1...Sdc2
- 1.cxd5?
- threat
- 2.Sc4#
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sdc6
- 2.Sf3#
- 1...f3
- 2.Bh2#
- 1...Se6!
- threat
- 1.c5?
- 1...Sdc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sdc6
- 2.Sf3#
- 1...f3
- 2.Bh2#
- 1...Sa2
- 2.Sd3#
- 1...Sbc2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sa6
- 2.Sd3#
- 1...Sbc6
- 2.Sd3#
- 1...Se6!
- 1...Sdc2
- 1.Bh2?
- Keys
- 1.Sfe4!
- 1...dxc4
- 2.Bxd4#
- 1...dxe4
- 2.Bxd4#
- 1...f3
- 2.Bh2#
- 1...Sa2
- 2.Rxd5#
- 1...Sbc2
- 2.Rxd5#
- 1...Sd3
- 2.Rxd5#
- 1...Sa6
- 2.Rxd5#
- 1...Sbc6
- 2.Rxd5#
- 1...Sdc2
- 2.Re6#
- 1...Se2
- 2.Re6#
- 1...Sb3
- 2.Re6#
- 1...Sf3
- 2.Re6#
- 1...Sb5
- 2.Re6#
- 1...Sf5
- 2.Re6#
- 1...Sdc6
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...dxc4
- 1.Sfe4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 13
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);OGATEB::B(A)
- P(d);XP(D)::S(B),XP(d)
- Tries
- Try
- B(A);P_PINP(c)
- Vars
- P(d);XP(D)::S(B),XP(d)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- S(b);
- Try
- R(F);
- Vars
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);OGATEB::B(A)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- P(d);XP(D)
- Try
- R(F);
- Vars
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);OGATEB::B(A)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- P(d);XP(D)
- Try
- P(D);XP(d)
- Threat
- S(B)
- Vars
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);OGATEB::B(A)
- Refutation
- S(b);
- Try
- P(D);
- Vars
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);OGATEB::B(A)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- S(b);
- Try
- Actual
- S(C);
- Vars
- P(d);XP(D)::B(A),XS(b)
- P(d);XS(C)::B(A),XS(b)
- P(c);OGATEB::B(A)
- S(a);N_GUARD::R1(F),XP(d)
- S(b);N_GUARD::R1(F)
- S(b);N_GUARD::R1(F),XS(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).