MESON Chess Problem Database
Problem Display
PID: 149818 (3N4/2n5/2K4P/5B2/1ppk1P1N/R1n1pQ2/1r5p/B6b w - - 0 1)
Buchbinder, Grigory J
Revista Romana de Sah, 1976
#2
9 + 9
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Qe4#
- 1...Bxf3+
- 2.Sxf3#
- 1...Se4
- 2.Qxe3#
- 1...S3d5
- 2.Qd1#
- 1...Sb5
- 2.Se6#
- 1...S7d5
- 2.Se6#
- 1...Sa6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sa8
- 2.Se6#
- 1...Se8
- 2.Se6#
- 1...Rg2
- Tries
- 1.Sg2?
- threat
- 2.Qxe3#
- 1...Rxg2
- 2.Qe4#
- 1...Re2
- 2.Qe4#
- 1...Sd1
- 2.Qxd1#
- 2.Qe4#
- 1...S3d5
- 2.Qd1#
- 2.Qe4#
- 1...S7d5
- 2.Se6#
- 1...e2
- 2.Qf2#
- 2.Qe3#
- 1...Bxg2!
- threat
- 1.Bc2?
- threat
- 2.Sf5#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxc2!
- threat
- 1.Qxh1?
- threat
- 2.Sf3#
- 1...Rf2
- 2.Qe4#
- 1...e2!
- threat
- 1.Sg2?
- Keys
- 1.h7!
- threat
- 2.h8Q#
- 2.h8B#
- 1...Bxf3+
- 2.Sxf3#
- 1...bxa3
- 2.h8Q#
- 2.h8B#
- 1...Rb1
- 2.h8Q#
- 2.h8B#
- 1...Ra2
- 2.h8Q#
- 2.h8B#
- 1...Rc2
- 2.h8Q#
- 2.h8B#
- 1...Rd2
- 2.h8Q#
- 2.h8B#
- 1...Re2
- 2.h8Q#
- 2.h8B#
- 1...Rf2
- 2.h8Q#
- 2.h8B#
- 1...Rg2
- 2.Qe4#
- 1...Rb3
- 2.h8Q#
- 2.h8B#
- 1...Bg2
- 2.h8Q#
- 2.h8B#
- 1...Sb1
- 2.h8Q#
- 2.h8B#
- 1...Sd1
- 2.h8Q#
- 2.h8B#
- 1...Sa2
- 2.h8Q#
- 2.h8B#
- 1...Se2
- 2.h8Q#
- 2.h8B#
- 1...Sa4
- 2.h8Q#
- 2.h8B#
- 1...Se4
- 2.Qxe3#
- 1...S3b5
- 2.h8Q#
- 2.h8B#
- 1...S3d5
- 2.Qd1#
- 1...S7b5
- 2.Se6#
- 2.h8Q#
- 2.h8B#
- 1...S7d5
- 2.Se6#
- 1...Sa6
- 2.Se6#
- 2.h8Q#
- 2.h8B#
- 1...Se6
- 2.Sxe6#
- 1...Sa8
- 2.Se6#
- 2.h8Q#
- 2.h8B#
- 1...Se8
- 2.Se6#
- 1...e2
- 2.h8Q#
- 2.h8B#
- 1...b3
- 2.h8Q#
- 2.h8B#
- threat
- 1.h7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(b);N_PINQ(C),P_SPINS(d),S_CUTB(a)::QAR1(C)
- B(a);CHECK,XQ(C)::S(E),XB(a)
- S(d);N_PINQ(C),P_SPINR(b)::QAB1(C),XP(e)
- S(d);N_PINQ(C),P_SPINR(b)::QAR(C)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD,N_PINQ(C)::S(I)
- S(i);N_GUARD::S(I),XS(i)
- Tries
- Try
- S(E);N_SPINQ(C)
- Threat
- QAB1(C),XP(e)
- Vars
- R(b);P_SPINS(d),XS(E)::QAR1(C)
- R(b);P_SPINS(d)::QAR1(C)
- S(i);N_GUARD::S(I)
- Refutation
- B(a);P_PINQ(C),XS(E)
- Try
- B(F);
- Threat
- S(E)
- Vars
- B(a);CHECK,XQ(C)::S(E),XB(a)
- Refutation
- R(b);P_SPINS(d),XB(F)
- Try
- Q(C);N_SPINQ(C),XB(a)
- Threat
- S(E)
- Vars
- R(b);P_SPINS(d)::QAR1(C)
- Refutation
- P(e);
- Try
- Actual
- P(H);
- Threat
- P=Q
- Vars
- B(a);CHECK,XQ(C)::S(E),XB(a)
- P(f);XR(B)::P=Q
- R(b);P_SPINS(d)::P=Q
- R(b);N_PINQ(C),P_SPINS(d),S_CUTB(a)::QAR1(C)
- B(a);::P=Q
- S(d);P_SPINR(b)::P=Q
- S(d);N_PINQ(C),P_SPINR(b)::QAB1(C),XP(e)
- S(d);N_PINQ(C),P_SPINR(b)::QAR(C)
- S(i);N_GUARD,N_PINQ(C)::S(I)
- S(i);N_GUARD::S(I),XS(i)
- S(i);N_GUARD::S(I)
- P(e);::P=Q
- P(f);::P=Q
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).