MESON Chess Problem Database
Problem Display
PID: 141768 (4Q3/1P2bB1P/5rP1/Rn2NnR1/3r1k1P/3P4/p1N1PP2/B6K w - - 0 1)
ten Cate, Pieter
Probleemblad, 1977
#2
15 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.Rg4#
- 1...Ra4
- 2.Rg4#
- 1...Rb4
- 2.Rg4#
- 1...Rc4
- 2.Rg4#
- 1...Re4
- 2.Rg4#
- 1...Rd5
- 2.Rg4#
- 1...Rdd6
- 2.Rg4#
- 1...Rd7
- 2.Rg4#
- 1...Rd8
- 2.Rg4#
- 1...Rxg6
- 2.Sxg6#
- 1...Ba3
- 2.Rg4#
- 1...Bb4
- 2.Rg4#
- 1...Bc5
- 2.Rg4#
- 1...Bd6
- 2.Rg4#
- 1...Bd8
- 2.Rg4#
- 1...Bf8
- 2.Rg4#
- 1...Sa3
- 2.Rg4#
- 1...Sc3
- 2.Rg4#
- 1...Sbd6
- 2.Rg4#
- 1...Sa7
- 2.Rg4#
- 1...Sc7
- 2.Rg4#
- 1...Se3
- 2.fxe3#
- 1...Sg3+
- 2.fxg3#
- 1...Sfd6
- 2.e3#
- 1...Sh6
- 2.e3#
- 1...Sg7
- 2.e3#
- 1...Rxd3
- Tries
- 1.Rxb5?
- threat
- 2.Rg4#
- 1...Sg3+
- 2.fxg3#
- 1...Rxg6
- 2.Sxg6#
- 1...Se3
- 2.fxe3#
- 1...Sd6
- 2.e3#
- 1...Sh6
- 2.e3#
- 1...Sg7
- 2.e3#
- 1...Sxh4!
- threat
- 1.e3+?
- 1...Sxe3
- 2.fxe3#
- 1...Kxe5!
- 1...Sxe3
- 1.h8B?
- 1...Sg3+
- 2.fxg3#
- 1...Kxe5
- 2.b8Q#
- 2.b8B#
- 1...Rxd3
- 2.Rg4#
- 1...Rxg6
- 2.Sxg6#
- 1...Rxf7
- 2.Rg4#
- 1...Ra4
- 2.Rg4#
- 1...Rb4
- 2.Rg4#
- 1...Rc4
- 2.Rg4#
- 1...Re4
- 2.Rg4#
- 1...Rd5
- 2.Rg4#
- 1...Rdd6
- 2.Rg4#
- 1...Rd7
- 2.Rg4#
- 1...Rd8
- 2.Rg4#
- 1...Ra6
- 2.Rg4#
- 1...Rb6
- 2.Rg4#
- 1...Rc6
- 2.Rg4#
- 1...Rfd6
- 2.Rg4#
- 1...Re6
- 2.Rg4#
- 1...Ba3
- 2.Rg4#
- 1...Bb4
- 2.Rg4#
- 1...Bc5
- 2.Rg4#
- 1...Bd6
- 2.Rg4#
- 1...Bd8
- 2.Rg4#
- 1...Bf8
- 2.Rg4#
- 1...Sa3
- 2.Rg4#
- 1...Sc3
- 2.Rg4#
- 1...Sbd6
- 2.Rg4#
- 1...Sa7
- 2.Rg4#
- 1...Sc7
- 2.Rg4#
- 1...Se3
- 2.fxe3#
- 1...Sfd6
- 2.e3#
- 1...Sh6
- 2.e3#
- 1...Sg7
- 2.e3#
- 1...Sxh4!
- 1...Sg3+
- 1.Rxb5?
- Keys
- 1.h8Q!
- 1...Sg3+
- 2.fxg3#
- 1...Kxe5
- 2.b8Q#
- 2.b8B#
- 1...Rxd3
- 2.Rg4#
- 1...Rxg6
- 2.Sxg6#
- 1...Rxf7
- 2.Rg4#
- 1...Sxh4
- 2.Qxh4#
- 1...Ra4
- 2.Rg4#
- 1...Rb4
- 2.Rg4#
- 1...Rc4
- 2.Rg4#
- 1...Re4
- 2.Rg4#
- 1...Rd5
- 2.Rg4#
- 1...Rdd6
- 2.Rg4#
- 1...Rd7
- 2.Rg4#
- 1...Rd8
- 2.Rg4#
- 1...Ra6
- 2.Rg4#
- 1...Rb6
- 2.Rg4#
- 1...Rc6
- 2.Rg4#
- 1...Rfd6
- 2.Rg4#
- 1...Re6
- 2.Rg4#
- 1...Ba3
- 2.Rg4#
- 1...Bb4
- 2.Rg4#
- 1...Bc5
- 2.Rg4#
- 1...Bd6
- 2.Rg4#
- 1...Bd8
- 2.Rg4#
- 1...Bf8
- 2.Rg4#
- 1...Sa3
- 2.Rg4#
- 1...Sc3
- 2.Rg4#
- 1...Sbd6
- 2.Rg4#
- 1...Sa7
- 2.Rg4#
- 1...Sc7
- 2.Rg4#
- 1...Se3
- 2.fxe3#
- 1...Sfd6
- 2.e3#
- 1...Sh6
- 2.e3#
- 1...Sg7
- 2.e3#
- 1...Sg3+
- 1.h8Q!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(b);XP(F)::R1(J)
- R(b);::R1(J)
- R(f);XP(K)::S(I),XR(f)
- B(g);::R1(J)
- S(d);::R1(J)
- S(e);OGATE::P(E),XS(e)
- S(e);CHECK,OGATE::P(E),XS(e)
- S(e);N_GUARD::P(D)
- Tries
- Try
- R(H);XS(d)
- Threat
- R1(J)
- Vars
- S(e);CHECK,OGATE::P(E),XS(e)
- R(f);XP(K)::S(I),XR(f)
- S(e);OGATE::P(E),XS(e)
- S(e);N_GUARD::P(D)
- Refutation
- S(e);XP(G)
- Try
- P(D);CHECK
- Vars
- S(e);OGATE,XP(D)::P(E),XS(e)
- Refutation
- K(c);P_SPINB(g),P_SPINR(b),P_SPINS(d),S_FLIGHT,XS(I)
- Try
- P(N);
- Vars
- S(e);CHECK,OGATE::P(E),XS(e)
- K(c);P_SPINB(g),P_SPINR(b),P_SPINS(d),S_FLIGHT,XS(I)::P=Q
- R(b);XP(F)::R1(J)
- R(f);XP(K)::S(I),XR(f)
- R(f);XB(M)::R1(J)
- R(b);::R1(J)
- R(f);::R1(J)
- B(g);::R1(J)
- S(d);::R1(J)
- S(e);OGATE::P(E),XS(e)
- S(e);N_GUARD::P(D)
- Refutation
- S(e);XP(G)
- Try
- Actual
- P(N);
- Vars
- S(e);CHECK,OGATE::P(E),XS(e)
- K(c);P_SPINB(g),P_SPINR(b),P_SPINS(d),S_FLIGHT,XS(I)::P=Q
- R(b);XP(F)::R1(J)
- R(f);XP(K)::S(I),XR(f)
- R(f);XB(M)::R1(J)
- S(e);OGATE,XP(G)::QAR2(N),XS(e)
- R(b);::R1(J)
- R(f);::R1(J)
- B(g);::R1(J)
- S(d);::R1(J)
- S(e);OGATE::P(E),XS(e)
- S(e);N_GUARD::P(D)
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).