MESON Chess Problem Database
Problem Display
PID: 52101 (5R2/3PBn2/2P1P3/2NpkN2/R3p1PP/5P2/3PP2K/8 w - - 0 1)
Lacny, Ludovit
1st HM., Sachove umeni (Ceskoslovensky sach), 1954/II
#2
14 + 4
| 3335 | Cyclone | 2000 |
| 4901 | Best Problems | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Sd3#
- 1...Sg5
- 2.Bd6#
- 1...Sd6
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 1...Sd8
- 2.Bd6#
- 1...Sh8
- 2.Bd6#
- 1...e3
- 2.f4#
- 1...Kf4
- Tries
- 1.Kg3?
- threat
- 2.f4#
- 1...exf3
- 2.d4#
- 1...d4!
- threat
- 1.Sd6?
- 1...Kf4
- 2.Sd3#
- 1...Sxd6
- 2.f4#
- 1...exf3
- 2.Sxf7#
- 1...Sg5
- 2.Rf5#
- 2.f4#
- 1...Sh6
- 2.f4#
- 1...Sd8
- 2.Rf5#
- 2.f4#
- 1...Sh8
- 2.Rf5#
- 2.f4#
- 1...e3
- 2.Sxf7#
- 2.f4#
- 1...d4!
- 1...Kf4
- 1.Sh6?
- 1...Kf4
- 2.Sd3#
- 2.Bd6#
- 1...Sxh6
- 2.f4#
- 1...exf3
- 2.Sxf7#
- 1...Sg5
- 2.Rf5#
- 2.f4#
- 1...Sd6
- 2.f4#
- 1...Sd8
- 2.Rf5#
- 2.f4#
- 1...Sh8
- 2.Rf5#
- 2.f4#
- 1...e3
- 2.Sxf7#
- 2.f4#
- 1...d4!
- 1...Kf4
- 1.Sg7?
- 1...Kf4
- 2.Sd3#
- 2.Bd6#
- 1...exf3
- 2.Sd3#
- 1...Sg5
- 2.Rf5#
- 2.f4#
- 1...Sd6
- 2.f4#
- 1...Sh6
- 2.f4#
- 1...Sd8
- 2.Rf5#
- 2.f4#
- 1...Sh8
- 2.Rf5#
- 2.f4#
- 1...e3
- 2.Sd3#
- 2.f4#
- 1...d4!
- 1...Kf4
- 1.Bf6+?
- 1...Kf4
- 2.Sd3#
- 1...Kxf6!
- 1...Kf4
- 1.Rd4?
- 1...Kf4
- 2.Sd3#
- 1...Sg5
- 2.Bd6#
- 1...Sd6
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 1...Sd8
- 2.Bd6#
- 1...Sh8
- 2.Bd6#
- 1...e3
- 2.f4#
- 1...exf3!
- 1...Kf4
- 1.Rxf7?
- threat
- 2.Bd6#
- 1...Kf4
- 2.Sd3#
- 2.Bd6#
- 1...d4!
- threat
- 1.d4+?
- 1...exd4 ep
- 2.f4#
- 1...Kf4!
- 1...exd4 ep
- 1.e3?
- threat
- 2.f4#
- 1...exf3
- 2.d4#
- 1...d4!
- threat
- 1.d8Q?
- 1...Kf4
- 2.Sd3#
- 1...Sxd8
- 2.Bd6#
- 1...exf3
- 2.Bf6#
- 1...Sg5
- 2.Bd6#
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Sd6
- 2.Bxd6#
- 2.Qxd6#
- 1...Sh6
- 2.Bd6#
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Sh8
- 2.Bd6#
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...e3
- 2.Bf6#
- 2.f4#
- 1...d4!
- 1...Kf4
- 1.d8S?
- 1...Kf4
- 2.Sd3#
- 1...Sxd8
- 2.Bd6#
- 1...exf3
- 2.Sd3#
- 2.Sd7#
- 2.Sxf7#
- 1...Sg5
- 2.Bd6#
- 1...Sd6
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 1...Sh8
- 2.Bd6#
- 1...e3
- 2.Sd3#
- 2.Sd7#
- 2.Sxf7#
- 2.f4#
- 1...d4!
- 1...Kf4
- 1.d8B?
- 1...Kf4
- 2.Sd3#
- 1...Sxd8
- 2.Bd6#
- 1...exf3
- 2.Bf6#
- 1...Sg5
- 2.Bd6#
- 2.Bc7#
- 1...Sd6
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 2.Bc7#
- 1...Sh8
- 2.Bd6#
- 2.Bc7#
- 1...e3
- 2.Bf6#
- 2.f4#
- 1...d4!
- 1...Kf4
- 1.Kg3?
- Keys
- 1.Sd4!
- 1...Kf4
- 2.Bd6#
- 1...exf3
- 2.Sxf3#
- 1...Sg5
- 2.Rf5#
- 2.f4#
- 1...Sd6
- 2.f4#
- 1...Sh6
- 2.f4#
- 1...Sd8
- 2.Rf5#
- 2.f4#
- 1...Sh8
- 2.Rf5#
- 2.f4#
- 1...e3
- 2.Sd3#
- 1...Kf4
- 1.Sd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- K(c);P_SPINP(a),S_FLIGHT::S(H)
- S(d);N_GUARD::B(M)
- S(d);N_GUARD::B(M),XS(d)
- P(a);::P(D)
- Tries
- Try
- K(C);S_FLIGHT
- Threat
- P(D)
- Vars
- P(a);N_GUARD,XP(D)::P(A)
- Refutation
- P(b);
- Try
- S(I);
- Vars
- K(c);P_SPINP(a),P_SPINS(d),S_FLIGHT::S(H)
- S(d);XS(I)::P(D)
- P(a);XP(D)::S(I),XS(d)
- S(d);::P(D)
- Refutation
- P(b);
- Try
- S(I);
- Vars
- S(d);XS(I)::P(D)
- P(a);XP(D)::S(I),XS(d)
- S(d);::P(D)
- Refutation
- P(b);
- Try
- S(I);
- Vars
- P(a);N_GUARD,XP(D)::S(H)
- S(d);::P(D)
- Refutation
- P(b);
- Try
- B(M);CHECK
- Vars
- K(c);P_SPINP(a),S_FLIGHT::S(H)
- Refutation
- K(c);P_SPINS(d),S_FLIGHT,XB(M)
- Try
- R(E);
- Vars
- K(c);P_SPINP(a),S_FLIGHT::S(H)
- S(d);N_GUARD::B(M)
- S(d);N_GUARD::B(M),XS(d)
- P(a);::P(D)
- Refutation
- P(a);XP(D)
- Try
- R(N);XS(d)
- Threat
- B(M)
- Refutation
- P(b);
- Try
- P(A);CHECK
- Vars
- P(a);EP,XP(A)::P(D)
- Refutation
- K(c);S_FLIGHT
- Try
- P(B);
- Threat
- P(D)
- Vars
- P(a);N_GUARD,XP(D)::P(A)
- Refutation
- P(b);
- Try
- P(L);
- Vars
- K(c);P_SPINP(a),S_FLIGHT::S(H)
- S(d);N_GUARD,XQ(L)::B(M)
- P(a);XP(D)::B(M)
- Refutation
- P(b);
- Try
- P(L);
- Vars
- K(c);P_SPINP(a),S_FLIGHT::S(H)
- S(d);N_GUARD,XS(L)::B(M)
- S(d);N_GUARD::B(M)
- S(d);N_GUARD::B(M),XS(d)
- Refutation
- P(b);
- Try
- P(L);
- Vars
- K(c);P_SPINP(a),S_FLIGHT::S(H)
- S(d);N_GUARD,XB(L)::B(M)
- P(a);XP(D)::B(M)
- S(d);N_GUARD::B(M),XS(d)
- Refutation
- P(b);
- Try
- Actual
- S(I);
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(M)
- P(a);XP(D)::S(I),XP(a)
- S(d);::P(D)
- P(a);N_GUARD::S(H)
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).