MESON Chess Problem Database
Problem Display
PID: 43085 (2rn1q2/1N1Q4/R1n2r2/pP1N4/kB1p4/p2B1p2/P4p2/4bK2 w - - 0 1)
Lacny, Ludovit
1/2 Prize, Pravda - Tirnavia, 1983-1984
#2
9 + 12
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Qxb4
- 2.Sb6#
- 1...Qc5
- 2.Sxc5#
- 1...Qh6
- 2.Sc5#
- 1...Qg7
- 2.Sc5#
- 1...Qf7
- 2.Sc5#
- 1...Qe8
- 2.Sc5#
- 1...Qg8
- 2.Sc5#
- 1...Qh8
- 2.Sc5#
- 1...Rd6
- 2.Sc5#
- 1...Bxb4
- 2.Sb6#
- 1...Sxb4
- 2.Rxa5#
- 1...Se5
- 2.Rxa5#
- 1...Sa7
- 2.Rxa5#
- 1...Se7
- 2.Rxa5#
- 1...Sb8
- 2.Rxa5#
- 1...Qxb4
- Tries
- 1.Bd2?
- threat
- 2.Sb6#
- 1...Qc5
- 2.Sxc5#
- 1...Sb4
- 2.Rxa5#
- 1...Se5
- 2.Rxa5#
- 1...Sa7
- 2.Rxa5#
- 1...Se7
- 2.Rxa5#
- 1...Sb8
- 2.Rxa5#
- 1...Bxd2!
- threat
- 1.Bd6?
- threat
- 2.Sb6#
- 2.Sc5#
- 1...Rxd6
- 2.Sc5#
- 1...Sxb7
- 2.Sb6#
- 1...Bb4
- 2.Sb6#
- 1...Sb4
- 2.Sb6#
- 2.Rxa5#
- 1...Se5
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...Sb8
- 2.Sb6#
- 1...Se6
- 2.Sb6#
- 1...Qxd6!
- threat
- 1.Qxc6?
- threat
- 2.Bc2#
- 2.Rxa5#
- 1...Qxb4
- 2.Sb6#
- 1...Rfxc6
- 2.Rxa5#
- 1...Rcxc6
- 2.Rxa5#
- 1...Bxb4
- 2.Sb6#
- 2.Bc2#
- 1...Sxb7
- 2.Bc2#
- 1...Qc5
- 2.Sxc5#
- 2.Rxa5#
- 1...Ra8
- 2.Bc2#
- 2.Qc2#
- 1...Sxc6!
- threat
- 1.Qd6?
- threat
- 2.Sb6#
- 2.Sc5#
- 1...Rxd6
- 2.Sc5#
- 1...Bxb4
- 2.Sb6#
- 1...Sxb4
- 2.Sb6#
- 2.Rxa5#
- 1...Sxb7
- 2.Sb6#
- 1...Se5
- 2.Sb6#
- 2.Rxa5#
- 1...Sa7
- 2.Sb6#
- 2.Rxa5#
- 1...Se7
- 2.Sb6#
- 2.Rxa5#
- 1...Sb8
- 2.Sb6#
- 2.Rxa5#
- 1...Se6
- 2.Sb6#
- 1...Qxd6!
- threat
- 1.Qe7?
- threat
- 2.Sb6#
- 2.Sc5#
- 1...Bxb4
- 2.Sb6#
- 1...Sxb4
- 2.Rxa5#
- 1...Sxe7
- 2.Rxa5#
- 1...Sxb7
- 2.Sb6#
- 1...Rd6
- 2.Sc5#
- 1...Se5
- 2.Rxa5#
- 1...Sa7
- 2.Rxa5#
- 1...Sb8
- 2.Rxa5#
- 1...Se6
- 2.Sb6#
- 1...Qxe7!
- threat
- 1.Bd2?
- Keys
- 1.Bc5!
- threat
- 2.Sb6#
- 1...Qxc5
- 2.Sxc5#
- 1...Sb4
- 2.Rxa5#
- 1...Se5
- 2.Bc2#
- 1...Sa7
- 2.Bc2#
- 1...Se7
- 2.Bc2#
- 1...Sb8
- 2.Bc2#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- Q(l);SBLOCK,XB(D)::S(F)
- Q(l);N_GUARD::S(H),XQ(l)
- Q(l);N_GUARD::S(H)
- R(i);S_CUTQ(l)::S(H)
- B(a);SBLOCK,XB(D)::S(F)
- S(h);N_GUARD,XB(D)::R1(G),XP(g)
- S(h);N_GUARD::R1(G),XP(g)
- Tries
- Try
- B(D);
- Threat
- S(F)
- Vars
- Q(l);N_GUARD::S(H),XQ(l)
- S(h);N_GUARD::R1(G),XP(g)
- Refutation
- B(a);XB(D)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(i);XB(D)::S(H)
- S(k);XS(H)::S(F)
- B(a);::S(F)
- S(h);::S(F)
- S(k);::S(F)
- Refutation
- Q(l);XB(D)
- Try
- Q(I);XS(h)
- Threat
- DUALS(2)
- Vars
- Q(l);SBLOCK,XB(D)::S(F)
- R(i);XQ(I)::R1(G),XP(g)
- R(j);XQ(I)::R1(G),XP(g)
- S(k);XS(H)::B(C)
- Refutation
- S(k);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(i);XQ(I)::S(H)
- B(a);XB(D)::S(F)
- S(k);XS(H)::S(F)
- S(k);::S(F)
- Refutation
- Q(l);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(a);XB(D)::S(F)
- S(h);N_GUARD,XB(D)::R1(G),XP(g)
- S(h);N_GUARD,XQ(I)::R1(G),XP(g)
- S(k);XS(H)::S(F)
- R(i);::S(H)
- S(h);N_GUARD::R1(G),XP(g)
- S(k);::S(F)
- Refutation
- Q(l);XQ(I)
- Try
- Actual
- B(D);
- Threat
- S(F)
- Vars
- Q(l);XB(D)::S(H),XQ(l)
- S(h);N_GUARD,S_CUTB(a)::R1(G),XP(g)
- S(h);::B(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).