MESON Chess Problem Database
Problem Display
PID: 185194 (1K4n1/n7/1Qbp4/R2PkPBp/1R2N1p1/2P1N3/2r5/3q4 w - - 0 1)
Burda, Josef
2nd HM., Sachove umeni (Ceskoslovensky sach), 2007-2008
#2
10 + 9
| 3485 | Sachova skladba | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Qd4#
- 1...Qf3
- 2.Qd4#
- 1...Qa1
- 2.Qd4#
- 1...Qb1
- 2.Qd4#
- 1...Qc1
- 2.Qd4#
- 1...Qe1
- 2.Qd4#
- 1...Qf1
- 2.Qd4#
- 1...Qg1
- 2.Qd4#
- 1...Qh1
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Qxd5
- 2.Qd4#
- 1...Ba4
- 2.Qxd6#
- 1...Bb5
- 2.Qxd6#
- 1...Bxd5
- 2.Qxd6#
- 1...Bb7
- 2.Qxd6#
- 1...Bd7
- 2.Qxd6#
- 1...Ba8
- 2.Qxd6#
- 1...Be8
- 2.Qxd6#
- 1...Qe2
- Tries
- 1.Sf2?
- threat
- 2.Re4#
- 1...Qf3
- 2.Sd3#
- 2.Qd4#
- 1...Qh1
- 2.Sd3#
- 2.Qd4#
- 1...Qd3
- 2.Sxd3#
- 1...Qd4
- 2.Qxd4#
- 2.cxd4#
- 1...Sf6
- 2.Bf4#
- 1...Rxf2!
- threat
- 1.Sg3?
- threat
- 2.Sc4#
- 2.Re4#
- 1...Rxc3
- 2.Re4#
- 1...Qe2
- 2.Re4#
- 2.Qd4#
- 1...Qf3
- 2.Sc4#
- 2.Qd4#
- 1...Qf1
- 2.Re4#
- 2.Qd4#
- 1...Qh1
- 2.Sc4#
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 2.cxd4#
- 1...Bb5
- 2.Re4#
- 1...Sb5
- 2.Re4#
- 1...Sf6
- 2.Sc4#
- 2.Bf4#
- 1...Qd3!
- threat
- 1.Sxd6?
- threat
- 2.Sec4#
- 2.Sf7#
- 1...Kxd6
- 2.Qc7#
- 1...Rxc3
- 2.Sf7#
- 1...Qe2
- 2.Sf7#
- 1...Qf1
- 2.Sf7#
- 1...Qd3
- 2.Sf7#
- 1...Bb5
- 2.Sf7#
- 2.Re4#
- 1...Be8
- 2.Sec4#
- 2.Re4#
- 1...Sb5
- 2.Sf7#
- 1...Sh6
- 2.Sec4#
- 1...Qd4!
- threat
- 1.Sf6?
- threat
- 2.Re4#
- 1...Sxf6
- 2.Bf4#
- 1...Qf3
- 2.Qd4#
- 1...Qh1
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 2.cxd4#
- 1...Qd3!
- threat
- 1.dxc6+?
- 1...Qd5
- 2.Rxd5#
- 2.Qd4#
- 1...d5
- 2.Qc7#
- 1...Sb5!
- 1...Qd5
- 1.Sf2?
- Keys
- 1.Sc5!
- threat
- 2.Re4#
- 1...Qxd5
- 2.Sd3#
- 1...Bxd5
- 2.Sd7#
- 1...dxc5
- 2.Qc7#
- 1...Qf3
- 2.Sd3#
- 1...Qh1
- 2.Sd3#
- 1...Qd3
- 2.Sxd3#
- 1...Qd4
- 2.cxd4#
- 1...Sf6
- 2.Bf4#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- Q(a);N_GUARD::QAB1(I)
- Q(a);N_GUARD::QAB1(I),XQ(a)
- Q(a);N_GUARD,P_SPINQ(a),XP(F)::QAB1(I)
- B(f);OGATE::QAB1(I),XP(g)
- B(f);OGATE,P_SPINB(f),XP(F)::QAB1(I),XP(g)
- Tries
- Try
- S(D);
- Threat
- R1(C)
- Vars
- Q(a);N_GUARD::S(D),XQ(a)
- S(i);SBLOCK::B(H)
- Refutation
- R(b);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(A)::R1(C)
- B(f);::R1(C)
- S(h);::R1(C)
- Refutation
- Q(a);
- Try
- S(D);XP(g)
- Threat
- DUALS(2)
- Vars
- K(d);OGATEB,P_SPINB(f),S_FLIGHT,XS(D)::QAB1(I)
- R(b);XP(A)::S(D)
- Q(a);::S(D)
- S(h);::S(D)
- S(i);::S(B)
- Refutation
- Q(a);
- Try
- S(D);
- Threat
- R1(C)
- Vars
- S(i);SBLOCK,XS(D)::B(H)
- Q(a);N_GUARD::QAB1(I)
- Refutation
- Q(a);
- Try
- P(F);CHECK,XB(f)
- Vars
- P(g);P_SPINP(g),S_CUTQ(a),S_CUTS(h)::QAB(I)
- Refutation
- S(h);P_SPINS(h)
- Try
- Actual
- S(D);
- Threat
- R1(C)
- Vars
- Q(a);N_GUARD,XP(F)::S(D)
- B(f);N_GUARD,XP(F)::S(D)
- P(g);OGATEB,XS(D)::QAB(I)
- Q(a);N_GUARD::S(D)
- Q(a);N_GUARD::S(D),XQ(a)
- Q(a);OGATE::P(A),XQ(a)
- S(i);SBLOCK::B(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).