MESON Chess Problem Database
Problem Display
PID: 134366 (1b2NRbK/rR2p1P1/2P1k2p/2Qn1p2/3pN1pq/8/6BB/5r2 w - - 0 1)
Gvozdjak, Peter
1st Prize, Brabec-70 JT, 2008
#2
10 + 12
| 56 | The Problemist | 2009 |
| 23 | Die Schwalbe | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Sf4
- 2.Qxf5#
- 1...Sc7
- 2.Qe5#
- 1...Sf4
- Tries
- 1.Sf2?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...Qxh2
- 2.Qxd5#
- 1...Bxh2
- 2.Qxd5#
- 1...Qg3
- 2.Qxd5#
- 1...Bg3
- 2.Qxd5#
- 1...Bf4
- 2.Qxd5#
- 1...g3
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...Ra5
- 2.Bxd5#
- 1...Sc3
- 2.Qxf5#
- 1...Sb4
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qxf5#
- 1...Sf6
- 2.Qxe7#
- 1...Sc7
- 2.Qe5#
- 2.Qxf5#
- 1...Se3!
- threat
- 1.Sg5+?
- 1...Qxg5
- 2.Bxd5#
- 2.Qxd5#
- 1...hxg5+!
- 1...Qxg5
- 1.S4d6?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...Qxh2
- 2.Qxd5#
- 1...Qg3
- 2.Qxd5#
- 1...Rf4
- 2.Qxd5#
- 1...g3
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...Se3
- 2.Qe5#
- 1...Ra5
- 2.Bxd5#
- 1...Sc3
- 2.Qe5#
- 1...Sb4
- 2.Qe5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sc7
- 2.Qe5#
- 1...Rf3!
- threat
- 1.Sc7+?
- 1...Sxc7
- 2.Qe5#
- 1...Bxc7!
- 1...Sxc7
- 1.Qxe7+?
- 1...Sxe7
- 2.Sc5#
- 1...Qxe7!
- 1...Sxe7
- 1.Sf2?
- Keys
- 1.S4f6!
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...Qxh2
- 2.Qxd5#
- 1...Bxh2
- 2.Qxd5#
- 1...Sxf6
- 2.Qxe7#
- 1...Qg3
- 2.Qxd5#
- 1...Rf4
- 2.Qxd5#
- 1...Bg3
- 2.Qxd5#
- 1...Bf4
- 2.Qxd5#
- 1...g3
- 2.Qxd5#
- 1...f4
- 2.Qxd5#
- 1...Se3
- 2.Qxe7#
- 1...Rf3
- 2.Qxd5#
- 1...Ra5
- 2.Bxd5#
- 1...Sc3
- 2.Qxe7#
- 1...Sb4
- 2.Qxe7#
- 1...Sf4
- 2.Qxe7#
- 1...Sb6
- 2.Qxe7#
- 1...Sc7
- 2.Qe5#
- threat
- 1.S4f6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 15
- REMOVED MATES = 0
- Sets
- S(e);OGATE::QAB1(D),XP(f)
- S(e);OGATE::QAR1(D)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(d);XB(B)::QAB1(D),XS(e)
- B(k);XB(B)::QAB1(D),XS(e)
- Q(d);::QAB1(D),XS(e)
- B(k);::QAB1(D),XS(e)
- P(c);::QAB1(D),XS(e)
- P(f);::QAB1(D),XS(e)
- R(i);::B(A),XS(e)
- S(e);OGATE::QAB1(D),XP(f)
- S(e);N_GUARD,S_CUTQ(d)::QAR1(D),XP(j)
- Refutation
- S(e);
- Try
- S(C);CHECK
- Refutation
- P(h);CHECK,XS(C)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(d);XB(B)::QAB1(D),XS(e)
- Q(d);::QAB1(D),XS(e)
- R(a);::QAB1(D),XS(e)
- P(c);::QAB1(D),XS(e)
- P(f);::QAB1(D),XS(e)
- S(e);OGATE::QAR1(D)
- R(i);::B(A),XS(e)
- S(e);OGATE::QAB1(D),XP(f)
- Refutation
- R(a);
- Try
- S(H);CHECK
- Vars
- S(e);OGATE,XS(H)::QAR1(D)
- Refutation
- B(k);XS(H)
- Try
- Q(D);CHECK,XP(j)
- Vars
- S(e);XQ(D)::S(C)
- Refutation
- Q(d);XQ(D)
- Try
- Actual
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(d);XB(B)::QAB1(D),XS(e)
- B(k);XB(B)::QAB1(D),XS(e)
- S(e);N_GUARD,XS(C)::QAR1(D),XP(j)
- Q(d);::QAB1(D),XS(e)
- R(a);::QAB1(D),XS(e)
- B(k);::QAB1(D),XS(e)
- P(c);::QAB1(D),XS(e)
- P(f);::QAB1(D),XS(e)
- S(e);N_GUARD::QAR1(D),XP(j)
- R(i);::B(A),XS(e)
- S(e);OGATE::QAR1(D)
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).