MESON Chess Problem Database
Problem Display
PID: 155024 (8/3B4/1p2PPN1/1P1k1N1K/p2p1RP1/B1p2n1p/2P1r2P/5Qn1 w - - 0 1)
Lacny, Ludovit
3rd Prize, Pat a Mat, 2009
#2
13 + 9
| 23 | Die Schwalbe | 2014 |
| 56 | The Problemist | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Se3#
- 1...Re1
- 2.Sfe7#
- 1...Rxc2
- 2.Sfe7#
- 1...Rd2
- 2.Sfe7#
- 1...Rf2
- 2.Sfe7#
- 1...Rg2
- 2.Sfe7#
- 1...Rxh2
- 2.Sfe7#
- 1...Re3
- 2.Sfe7#
- 1...Re4
- 2.Sfe7#
- 1...Re5
- 2.Se7#
- 1...Se1
- 2.Rxd4#
- 1...Sd2
- 2.Rxd4#
- 1...Sxh2
- 2.Rxd4#
- 1...Sh4
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Sg5
- 2.Rxd4#
- 1...d3
- 2.Sfe7#
- 1...Kc4
- Tries
- 1.Kh6?
- 1...Kc4
- 2.Se3#
- 1...Rxc2
- 2.Sfe7#
- 1...Rxh2
- 2.Sfe7#
- 1...Sxh2
- 2.Rxd4#
- 1...Re1
- 2.Sfe7#
- 1...Rd2
- 2.Sfe7#
- 1...Rf2
- 2.Sfe7#
- 1...Rg2
- 2.Sfe7#
- 1...Re3
- 2.Sfe7#
- 1...Re4
- 2.Sfe7#
- 1...Re5
- 2.Sfe7#
- 2.Sge7#
- 1...Se1
- 2.Rxd4#
- 1...Sd2
- 2.Rxd4#
- 1...Sh4
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Sg5
- 2.Rxd4#
- 1...d3
- 2.Sfe7#
- 1...Rxe6!
- 1...Kc4
- 1.Sge7+?
- 1...Kc4
- 2.Se3#
- 2.Sd6#
- 1...Ke5!
- 1...Kc4
- 1.Bd6?
- 1...Kc4
- 2.Se3#
- 1...Rxc2
- 2.Sge7#
- 1...Rxh2
- 2.Sge7#
- 1...Rxe6
- 2.Bc6#
- 1...Sxh2
- 2.Rxd4#
- 1...Re1
- 2.Sge7#
- 1...Rd2
- 2.Sge7#
- 1...Rf2
- 2.Sge7#
- 1...Rg2
- 2.Sge7#
- 1...Re3
- 2.Sge7#
- 1...Re4
- 2.Sge7#
- 1...Re5
- 2.Se7#
- 1...Se1
- 2.Rxd4#
- 1...Sd2
- 2.Rxd4#
- 1...Sh4
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Sg5
- 2.Rxd4#
- 1...d3
- 2.Sge7#
- 1...a3!
- 1...Kc4
- 1.Bc6+?
- 1...Kc4
- 2.Se3#
- 2.Sd6#
- 1...Kxe6!
- 1...Kc4
- 1.Qxe2?
- threat
- 2.Sfe7#
- 2.Sge7#
- 2.Bc6#
- 1...Se5
- 2.Sfe7#
- 2.Sge7#
- 2.Rxd4#
- 1...Sxe2!
- threat
- 1.Qa1?
- threat
- 2.Qa2#
- 1...Kc4
- 2.Qa2#
- 1...Sd2
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Rxc2!
- threat
- 1.Qb1?
- threat
- 2.Qa2#
- 1...Kc4
- 2.Qa2#
- 1...Sd2
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Rxc2!
- threat
- 1.g5?
- 1...Kc4
- 2.Se3#
- 1...Rxc2
- 2.Sfe7#
- 1...Rxh2
- 2.Sfe7#
- 1...Sxh2
- 2.Rxd4#
- 1...Sxg5
- 2.Rxd4#
- 1...Re1
- 2.Sfe7#
- 1...Rd2
- 2.Sfe7#
- 1...Rf2
- 2.Sfe7#
- 1...Rg2
- 2.Sfe7#
- 1...Re3
- 2.Sfe7#
- 1...Re4
- 2.Sfe7#
- 1...Re5
- 2.Sfe7#
- 2.Sge7#
- 1...Se1
- 2.Rxd4#
- 1...Sd2
- 2.Rxd4#
- 1...Sh4
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...d3
- 2.Sfe7#
- 1...Rxe6!
- 1...Kc4
- 1.f7?
- 1...Kc4
- 2.Se3#
- 1...Rxc2
- 2.Sfe7#
- 1...Rxh2
- 2.Sfe7#
- 1...Sxh2
- 2.Rxd4#
- 1...Re1
- 2.Sfe7#
- 1...Rd2
- 2.Sfe7#
- 1...Rf2
- 2.Sfe7#
- 1...Rg2
- 2.Sfe7#
- 1...Re3
- 2.Sfe7#
- 1...Re4
- 2.Sfe7#
- 1...Re5
- 2.Se7#
- 1...Se1
- 2.Rxd4#
- 1...Sd2
- 2.Rxd4#
- 1...Sh4
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Sg5
- 2.Rxd4#
- 1...d3
- 2.Sfe7#
- 1...Rxe6!
- 1...Kc4
- 1.Kh6?
- Keys
- 1.Re4!
- 1...Kc4
- 2.Se3#
- 1...Kxe4
- 2.Bc6#
- 1...Rxc2
- 2.Bc6#
- 1...Rxh2
- 2.Bc6#
- 1...Rxe4
- 2.Sfe7#
- 1...Sxh2
- 2.Rxd4#
- 1...Re1
- 2.Bc6#
- 1...Rd2
- 2.Bc6#
- 1...Rf2
- 2.Bc6#
- 1...Rg2
- 2.Bc6#
- 1...Re3
- 2.Bc6#
- 1...Se1
- 2.Rxd4#
- 1...Sd2
- 2.Rxd4#
- 1...Sh4
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Sg5
- 2.Rxd4#
- 1...d3
- 2.Bc6#
- 1...Kc4
- 1.Re4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(h);P_SPINP(g),P_SPINR(b),S_FLIGHT::S(H)
- R(b);::S(H)
- R(b);XP(B)::S(H)
- R(b);XP(C)::S(H)
- R(b);P_PINS(H),SBLOCK::S(L)
- S(d);N_GUARD::R1(E),XP(g)
- S(d);N_GUARD,XP(C)::R1(E),XP(g)
- P(g);::S(H)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- K(h);P_SPINP(g),P_SPINR(b),S_FLIGHT::S(H)
- R(b);XP(B)::S(H)
- R(b);XP(C)::S(H)
- S(d);N_GUARD,XP(C)::R1(E),XP(g)
- R(b);::S(H)
- S(d);N_GUARD::R1(E),XP(g)
- P(g);::S(H)
- Refutation
- R(b);XP(J)
- Try
- S(L);CHECK
- Refutation
- K(h);P-FLIGHT
- Try
- B(D);
- Vars
- K(h);P_SPINP(g),P_SPINR(b),S_FLIGHT::S(H)
- R(b);XP(B)::S(L)
- R(b);XP(C)::S(L)
- R(b);SBLOCK,XP(J)::B(M)
- S(d);N_GUARD,XP(C)::R1(E),XP(g)
- R(b);::S(L)
- R(b);P_PINS(H)::S(L)
- S(d);N_GUARD::R1(E),XP(g)
- P(g);::S(L)
- Refutation
- P(f);
- Try
- B(M);CHECK
- Refutation
- K(h);S_FLIGHT,XP(J)
- Try
- Q(A);XR(b)
- Threat
- DUALS(3)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- K(h);P_SPINP(g),S_FLIGHT::QAB(A)
- S(d);N_GUARD::R1(E),XP(g)
- Refutation
- R(b);XP(B)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- K(h);P_SPINP(g),S_FLIGHT::QAB(A)
- S(d);N_GUARD::R1(E),XP(g)
- Refutation
- R(b);XP(B)
- Try
- P(F);
- Vars
- K(h);P_SPINP(g),P_SPINR(b),S_FLIGHT::S(H)
- R(b);XP(B)::S(H)
- R(b);XP(C)::S(H)
- S(d);N_GUARD,XP(C)::R1(E),XP(g)
- S(d);N_GUARD,XP(F)::R1(E),XP(g)
- R(b);::S(H)
- S(d);N_GUARD::R1(E),XP(g)
- P(g);::S(H)
- Refutation
- R(b);XP(J)
- Try
- P(K);
- Vars
- K(h);P_SPINP(g),P_SPINR(b),S_FLIGHT::S(H)
- R(b);XP(B)::S(H)
- R(b);XP(C)::S(H)
- S(d);N_GUARD,XP(C)::R1(E),XP(g)
- R(b);::S(H)
- R(b);P_PINS(H),SBLOCK::S(L)
- S(d);N_GUARD::R1(E),XP(g)
- P(g);::S(H)
- Refutation
- R(b);XP(J)
- Try
- Actual
- R(E);
- Vars
- K(h);P_SPINP(g),P_SPINR(b),S_FLIGHT::S(H)
- K(h);S_FLIGHT,XR(E)::B(M)
- R(b);XP(B)::B(M)
- R(b);XP(C)::B(M)
- R(b);SBLOCK,XR(E)::S(H)
- S(d);N_GUARD,XP(C)::R1(E),XP(g)
- R(b);::B(M)
- S(d);N_GUARD::R1(E),XP(g)
- P(g);::B(M)
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).