MESON Chess Problem Database
Problem Display
PID: 107842 (5QNb/K2ppn2/3Bkq2/3R1rR1/2Bp4/pN1n4/8/3r4 w - - 0 1)
Burda, Josef
Sachova skladba, 1997
#2
8 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Qxe7#
- 1...Qg7
- 2.Qxe7#
- 1...Qg6
- 2.Qxe7#
- 1...Qh6
- 2.Qxe7#
- 1...Rf1
- 2.Rxd4#
- 1...Rf2
- 2.Rxd4#
- 1...Rf3
- 2.Rxd4#
- 1...Rf4
- 2.Rxd4#
- 1...Re5
- 2.Sxd4#
- 1...Sc1
- 2.Sc5#
- 1...Se1
- 2.Sc5#
- 1...Sb2
- 2.Sc5#
- 1...Sf2
- 2.Sc5#
- 1...Sb4
- 2.Sc5#
- 1...Sf4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sde5
- 2.Sc5#
- 1...Sfe5
- 2.Sxd4#
- 1...Qe5
- Tries
- 1.Bc7?
- threat
- 2.Re5#
- 1...Rxd5
- 2.Bxd5#
- 1...d6
- 2.Qc8#
- 1...Qe5
- 2.Rxe5#
- 2.Rd6#
- 2.Qxe7#
- 1...Re5
- 2.Sxd4#
- 2.Rdxe5#
- 2.Rd6#
- 1...Sde5
- 2.Sc5#
- 2.Rxe5#
- 2.Rd6#
- 1...Sfe5
- 2.Sxd4#
- 2.Rxe5#
- 2.Rd6#
- 1...Sd6!
- threat
- 1.Bb8?
- threat
- 2.Re5#
- 1...Rxd5
- 2.Bxd5#
- 1...d6
- 2.Qc8#
- 1...Qe5
- 2.Rxe5#
- 2.Rd6#
- 2.Qxe7#
- 1...Re5
- 2.Sxd4#
- 2.Rdxe5#
- 2.Rd6#
- 1...Sde5
- 2.Sc5#
- 2.Rxe5#
- 2.Rd6#
- 1...Sfe5
- 2.Sxd4#
- 2.Rxe5#
- 2.Rd6#
- 1...Sd6!
- threat
- 1.Rc5+?
- 1...Kxd6
- 2.Qb8#
- 1...Rd5!
- 1...Kxd6
- 1.Rg6?
- threat
- 2.Sxd4#
- 2.Qxe7#
- 1...Qxg6
- 2.Qxe7#
- 1...exd6
- 2.Sxd4#
- 2.Qe7#
- 2.Qe8#
- 1...Re5
- 2.Sxd4#
- 1...Rf4
- 2.Qxe7#
- 1...Sc1
- 2.Sc5#
- 2.Qxe7#
- 1...Se1
- 2.Sc5#
- 2.Qxe7#
- 1...Sb2
- 2.Sc5#
- 2.Qxe7#
- 1...Sf2
- 2.Sc5#
- 2.Qxe7#
- 1...Sb4
- 2.Sc5#
- 2.Qxe7#
- 1...Sf4
- 2.Sc5#
- 2.Qxe7#
- 1...Sc5
- 2.Sxc5#
- 2.Qxe7#
- 1...Sde5
- 2.Sc5#
- 2.Qxe7#
- 1...Rxd5!
- threat
- 1.Bc7?
- Keys
- 1.Be5!
- threat
- 2.Sxd4#
- 1...Qxe5
- 2.Qxe7#
- 1...Sdxe5
- 2.Sc5#
- 1...d6
- 2.Qc8#
- 1...Rf4
- 2.Rd6#
- 1...Sc1
- 2.Sc5#
- 1...Se1
- 2.Sc5#
- 1...Sb2
- 2.Sc5#
- 1...Sf2
- 2.Sc5#
- 1...Sb4
- 2.Sc5#
- 1...Sf4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD::QAR1(G),XP(i)
- R(e);N_GUARD::B(B)+R(C),XP(d)
- R(e);S_CUTQ(g)::S(A),XP(d)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- S(j);S_CUTQ(g)::S(A),XP(d)
- Tries
- Try
- B(E);
- Threat
- B(B)+R(C),DCHECK
- Vars
- R(e);OGATE,P_SPINR(e),XR(C)::B(B),XR(e)
- P(h);OGATEB::QAB(G)
- Refutation
- S(j);
- Try
- B(E);
- Threat
- B(B)+R(C),DCHECK
- Vars
- R(e);OGATE,P_SPINR(e),XR(C)::B(B),XR(e)
- P(h);OGATEB::QAB(G)
- Refutation
- S(j);
- Try
- R(C);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINP(i),XB(E)::QAB(G)
- Refutation
- R(e);P_SPINR(e)
- Try
- R(D);P_PINQ(g)
- Threat
- DUALS(2)
- Vars
- Q(g);N_SPINQ(g),XR(D)::QAR1(G),XP(i)
- R(e);::S(A),XP(d)
- R(e);::QAR1(G),XP(i)
- Refutation
- R(e);P_SPINR(e),XR(C)
- Try
- Actual
- B(E);
- Threat
- S(A),XP(d)
- Vars
- Q(g);N_GUARD,XB(E)::QAR1(G),XP(i)
- S(c);N_GUARD,XB(E)::S(A)
- P(h);OGATEB::QAB(G)
- R(e);::B(B)+R(C),DCHECK
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(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).