MESON Chess Problem Database
Problem Display
PID: 198628 (K1k5/2p4P/n2RP3/2NN1n2/8/2b5/8/2R5 w - - 0 1)
Zaragoza, Luis
BCPS Website, 2019
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.h8Q#
- 2.h8R#
- 1...Bd2
- 2.h8Q#
- 2.h8R#
- 1...Bb4
- 2.h8Q#
- 2.h8R#
- 1...Ba5
- 2.h8Q#
- 2.h8R#
- 1...Se3
- 2.Se7#
- 1...Sg3
- 2.Se7#
- 1...Sd4
- 2.Se7#
- 2.h8Q#
- 2.h8R#
- 1...Sh4
- 2.Se7#
- 1...Sh6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sg7
- 2.Se7#
- 1...Be1
- Tries
- 1.Sxa6?
- 1...cxd6
- 2.h8Q#
- 2.h8R#
- 1...Bd4
- 2.Rxc7#
- 1...Ba1
- 2.Sb6#
- 2.Rxc7#
- 1...Be1
- 2.Sb6#
- 2.Rxc7#
- 2.h8Q#
- 2.h8R#
- 1...Bb2
- 2.Sb6#
- 2.Rxc7#
- 1...Bd2
- 2.Sb6#
- 2.Rxc7#
- 2.h8Q#
- 2.h8R#
- 1...Bb4
- 2.Sb6#
- 2.Rxc7#
- 2.h8Q#
- 2.h8R#
- 1...Ba5
- 2.h8Q#
- 2.h8R#
- 1...Be5
- 2.Sb6#
- 2.Rxc7#
- 1...Bf6
- 2.Sb6#
- 2.Rxc7#
- 1...Bg7
- 2.Sb6#
- 2.Rxc7#
- 1...Bh8
- 2.Sb6#
- 2.Rxc7#
- 1...Se3
- 2.Se7#
- 1...Sg3
- 2.Se7#
- 1...Sd4
- 2.Se7#
- 2.h8Q#
- 2.h8R#
- 1...Sh4
- 2.Se7#
- 1...Sh6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sg7
- 2.Se7#
- 1...c5
- 2.Sb6#
- 1...c6
- 2.Sb6#
- 1...Sxd6!
- 1...cxd6
- 1.Rxc3?
- threat
- 2.h8Q#
- 2.h8R#
- 1...Sxc5
- 2.h8Q#
- 2.h8R#
- 1...cxd6
- 2.h8Q#
- 2.h8R#
- 1...Se3
- 2.Se7#
- 2.h8Q#
- 2.h8R#
- 1...Sg3
- 2.Se7#
- 2.h8Q#
- 2.h8R#
- 1...Sd4
- 2.Se7#
- 2.h8Q#
- 2.h8R#
- 1...Sh4
- 2.Se7#
- 2.h8Q#
- 2.h8R#
- 1...Sh6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sg7
- 2.Se7#
- 1...Sb4
- 2.h8Q#
- 2.h8R#
- 1...Sb8
- 2.h8Q#
- 2.h8R#
- 1...c6
- 2.h8Q#
- 2.h8R#
- 1...Sxd6!
- threat
- 1.e7?
- threat
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Sxe7
- 2.Sxe7#
- 1...Sxc5
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...cxd6
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Ba1
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Be1
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 2.h8Q#
- 2.h8R#
- 1...Bb2
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Bd2
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 2.h8Q#
- 2.h8R#
- 1...Bb4
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 2.h8Q#
- 2.h8R#
- 1...Ba5
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 2.h8Q#
- 2.h8R#
- 1...Be5
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Bf6
- 2.Rd8#
- 1...Bg7
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Bh8
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Se3
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Sg3
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Sd4
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 2.h8Q#
- 2.h8R#
- 1...Sh4
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Sh6
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Sg7
- 2.Rd8#
- 1...Sb4
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Sb8
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...c6
- 2.Rd8#
- 2.e8Q#
- 2.e8R#
- 1...Sxd6!
- threat
- 1.Sxa6?
- Keys
- 1.Sb7!
- threat
- 2.Rd8#
- 1...Sxd6
- 2.Se7#
- 1...cxd6
- 2.h8Q#
- 2.h8R#
- 1...Bf6
- 2.Sb6#
- threat
- 1.Sb7!
This is a version of 198627
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- B(a);N_GUARD::P=Q
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- Tries
- Try
- S(B);XS(c)
- Vars
- P(d);P_SPINB(a),XR(D)::P=Q
- B(a);OGATE,P_SPINP(d)::R1(A),XP(d)
- B(a);N_GUARD,P_SPINP(d)::P=Q
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- P(d);N_GUARD::S(C)
- Refutation
- S(b);XR(D)
- Try
- R(A);XB(a)
- Threat
- P=Q
- Vars
- S(c);XS(B)::P=Q
- P(d);XR(D)::P=Q
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- S(c);::P=Q
- P(d);::P=Q
- Refutation
- S(b);XR(D)
- Try
- P(E);
- Threat
- DUALS(3)
- Vars
- S(b);XP(E)::S(C),XS(b)
- P(d);XR(D)::P=Q
- B(a);::R1(D)
- S(b);::R1(D)
- Refutation
- S(b);XR(D)
- Try
- Actual
- S(B);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XR(D)::S(C)
- P(d);P_SPINB(a),XR(D)::P=Q
- B(a);P_SPINP(d)::S(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).