MESON Chess Problem Database
Problem Display
PID: 242181 (4q3/b1BB1Q1p/4p3/5N1n/4k1Pp/R7/K5b1/1N1R4 w - - 0 1)
Kisis, Imants J
Sachove umeni (Ceskoslovensky sach), 1961
#2
9 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf7
- 2.Bc6#
- 1...Qe7
- 2.Bc6#
- 1...Qa8
- 2.Qxe6#
- 1...Qb8
- 2.Bc6#
- 2.Qxe6#
- 1...Qc8
- 2.Bc6#
- 2.Qxe6#
- 1...Qd8
- 2.Qxe6#
- 1...Qf8
- 2.Bc6#
- 2.Qxe6#
- 1...Qg8
- 2.Bc6#
- 1...Qh8
- 2.Bc6#
- 1...Bf3
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Rxd4#
- 1...Bb8
- 2.Rd4#
- 2.Re3#
- 1...exf5
- 2.Bxf5#
- 2.Qd5#
- 2.Qxe8#
- 2.Qxf5#
- 1...e5
- 2.Sd6#
- 1...Qxf7
- Tries
- 1.Sg3+?
- 1...Sxg3
- 2.Qf4#
- 1...hxg3!
- 1...Sxg3
- 1.Bxe8?
- threat
- 2.Bc6#
- 2.Qxe6#
- 1...exf5
- 2.Bc6#
- 2.Qd5#
- 2.Qe6#
- 2.Qxf5#
- 2.Qe7#
- 1...Be3
- 2.Bc6#
- 2.Rxe3#
- 1...Bd4
- 2.Bc6#
- 2.Rxd4#
- 1...e5
- 2.Sd6#
- 1...Sf6
- 2.Qxe6#
- 1...Sg7
- 2.Bc6#
- 1...Sf4!
- threat
- 1.Rdd3?
- threat
- 2.Sd2#
- 1...Bd4
- 2.Rxd4#
- 1...e5
- 2.Sd6#
- 1...Be3!
- threat
- 1.Rad3?
- threat
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 1...e5
- 2.Sd6#
- 1...Qh8
- 2.Bc6#
- 1...Bd4!
- threat
- 1.Qxe8?
- threat
- 2.Bc6#
- 2.Qxe6#
- 2.Qa8#
- 1...Be3
- 2.Bc6#
- 2.Rxe3#
- 2.Qa8#
- 1...Bd4
- 2.Bc6#
- 2.Rxd4#
- 2.Qa8#
- 1...e5
- 2.Qxe5#
- 1...Bb8
- 2.Bc6#
- 2.Rd4#
- 2.Re3#
- 2.Qxe6#
- 1...Sf6
- 2.Qxe6#
- 1...Sg7
- 2.Bc6#
- 2.Qa8#
- 1...Sf4!
- threat
- 1.Qf6?
- threat
- 2.Sd6#
- 2.Qe5#
- 1...Qxd7
- 2.Qe5#
- 1...exf5
- 2.Bxf5#
- 2.Qxf5#
- 2.Qc6#
- 1...Be3
- 2.Sd6#
- 2.Rxe3#
- 1...Bd4
- 2.Rxd4#
- 2.Qxd4#
- 1...e5
- 2.Sd6#
- 1...Qe7
- 2.Bc6#
- 2.Qe5#
- 1...Qf8
- 2.Bc6#
- 2.Qe5#
- 2.Qxe6#
- 1...Qh8
- 2.Sd6#
- 2.Bc6#
- 1...Bc5
- 2.Qe5#
- 1...Sxf6!
- threat
- 1.Qxh7?
- threat
- 2.Sg3#
- 1...exf5
- 2.Bxf5#
- 2.Qxf5#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Rxd4#
- 1...Qg6
- 2.Bc6#
- 1...Sg3
- 2.Sxg3#
- 1...e5!
- threat
- 1.Sg3+?
- Keys
- 1.Se7!
- threat
- 2.Qxe6#
- 1...Qxd7
- 2.Qxh7#
- 1...Qxf7
- 2.Bc6#
- 1...Qxe7
- 2.Bc6#
- 1...Qg8
- 2.Bc6#
- 1...Qh8
- 2.Bc6#
- 1...Be3
- 2.Sc3#
- 1...Bd4
- 2.Sd2#
- 1...Sf4
- 2.Qxf4#
- 1...Sg7
- 2.Qf4#
- 1...e5
- 2.Qf5#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(h);N_GUARD,XQ(I)::B(H)
- Q(h);N_GUARD::B(H)
- Q(h);N_GUARD::QAR2(I),XP(e)
- B(a);SBLOCK::S(A)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::R1(B),XB(f)
- P(e);SBLOCK::S(F)
- Tries
- Try
- S(F);CHECK
- Vars
- S(d);XS(F)::QAR1(I)
- Refutation
- P(c);XS(F)
- Try
- B(H);XQ(h)
- Threat
- DUALS(2)
- Vars
- P(e);SBLOCK::S(F)
- S(d);::QAR2(I),XP(e)
- S(d);::B(H)
- Refutation
- S(d);
- Try
- R(B);
- Threat
- S(A)
- Vars
- B(f);N_GUARD::R1(B),XB(f)
- P(e);SBLOCK::S(F)
- Refutation
- B(f);
- Try
- R(D);
- Threat
- S(A)
- Vars
- B(f);N_GUARD::R1(D),XB(f)
- P(e);SBLOCK::S(F)
- Q(h);N_GUARD::B(H)
- Refutation
- B(f);
- Try
- Q(I);P_PINP(e),XQ(h)
- Threat
- DUALS(3)
- Vars
- P(e);OGATE::QAR1(I),XP(e)
- S(d);::QAR2(I),XP(e)
- Refutation
- S(d);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(h);XB(H)::QAR1(I)
- P(e);::S(F)
- B(f);::QAR1(I)
- Refutation
- S(d);XQ(I)
- Try
- Q(I);XP(g)
- Threat
- QAB(I)+S(F),DCHECK
- Vars
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::R1(B),XB(f)
- Q(h);N_GUARD::B(H)
- S(d);::QAB(I)+S(F),DCHECK,XS(d)
- Refutation
- P(e);
- Try
- Actual
- S(F);
- Threat
- QAR2(I),XP(e)
- Vars
- Q(h);N_GUARD,XB(H)::QAB(I),XP(g)
- Q(h);N_GUARD,XQ(I)::B(H)
- Q(h);N_GUARD,XS(F)::B(H)
- Q(h);N_GUARD::B(H)
- B(f);SBLOCK::S(A)
- S(d);N_GUARD::QAR1(I),XS(d)
- S(d);N_GUARD::QAR1(I)
- P(e);N_GUARD::QAB1(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).