MESON Chess Problem Database
Problem Display
PID: 19274 (6Q1/4R2p/B3N3/2p2bR1/2q1kN1K/4p3/1npp2PB/7n w - - 0 1)
Hebelt, Vaclav
Zvaigzne, 1957
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Sxc5#
- 1...Qd4
- Tries
- 1.Qg7?
- threat
- 2.Sxc5#
- 1...Qxe6
- 2.Bb7#
- 1...Bxe6
- 2.Qe5#
- 1...Sg3!
- threat
- 1.Qa8+?
- 1...Qd5
- 2.Qxd5#
- 1...Ke5!
- 1...Qd5
- 1.Qh8?
- threat
- 2.Sxc5#
- 1...Qxe6
- 2.Bb7#
- 1...Bxe6
- 2.Qe5#
- 1...Sg3!
- threat
- 1.Qg7?
- Keys
- 1.Se2!
- threat
- 2.Sxc5#
- 1...Kd3+
- 2.S6f4#
- 1...Kd5+
- 2.S6d4#
- 1...Qxe2
- 2.Qa8#
- 1...Qxe6
- 2.Qa8#
- 1...Bxe6
- 2.Qxh7#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- Q(f);SBLOCK::R(H)+S(G),DCHECK,XP(h)
- Tries
- Try
- Q(I);
- Threat
- R(H)+S(G),DCHECK,XP(h)
- Vars
- Q(f);N_GUARD,P_SPINQ(f),XS(G)::B(F)
- B(i);P_SPINB(i),XS(G)::QAR1(I)
- Refutation
- S(a);
- Try
- Q(I);CHECK
- Vars
- Q(f);N_GUARD,P_SPINQ(f)::QAB1(I),XQ(f)
- Refutation
- K(g);P-FLIGHT,P_PINS(C),P_SPINB(i)
- Try
- Q(I);
- Threat
- R(H)+S(G),DCHECK,XP(h)
- Vars
- Q(f);N_GUARD,P_SPINQ(f),XS(G)::B(F)
- B(i);P_SPINB(i),XS(G)::QAR1(I)
- Refutation
- S(a);
- Try
- Actual
- S(C);
- Threat
- R(H)+S(G),DCHECK,XP(h)
- Vars
- K(g);CHECK,P_SPINQ(f),S_FLIGHT::S(G)
- K(g);CHECK,P_SPINB(i),S_FLIGHT::QAB(I)+S(G)
- Q(f);N_GUARD,XS(C)::QAB(I)
- Q(f);N_GUARD,P_SPINQ(f),XS(G)::QAB(I)
- B(i);OGATEB,P_SPINB(i),XS(G)::QAB(I),XP(j)
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).