MESON Chess Problem Database
Problem Display
PID: 162437 (1Q4b1/1P1B2N1/4P1p1/8/6kB/8/K7/6Nn w - - 0 1)
Jefimovas, E
Sachmatija, 2010
#2
8 + 4
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kxh4
- 2.Qf4#
- 1...Sf2
- 2.Qg3#
- 1...Sg3
- 2.Qxg3#
- 1...Kxh4
- Tries
- 1.Qh2?
- 1...Bxe6+
- 2.Bxe6#
- 1...Sg3
- 2.Qxg3#
- 1...Bf7
- 2.exf7#
- 1...Bh7
- 2.e7#
- 1...Sf2
- 2.Qg3#
- 1...g5!
- 1...Bxe6+
- 1.Qe5?
- threat
- 2.Qd4#
- 2.Qe4#
- 2.Qg5#
- 1...Kxh4
- 2.Qf4#
- 1...Sf2
- 2.Qg3#
- 2.Qg5#
- 1...Sg3
- 2.Qxg3#
- 2.Qg5#
- 1...g5
- 2.Qd4#
- 2.Qe4#
- 2.Qxg5#
- 1...Bxe6+!
- threat
- 1.Qd6?
- threat
- 2.Qb4#
- 2.Qd4#
- 1...Kxh4
- 2.Qf4#
- 1...Sf2
- 2.Qg3#
- 1...Sg3
- 2.Qxg3#
- 1...Bxe6+!
- threat
- 1.Qh2?
- Keys
- 1.Qc7!
- threat
- 2.Qc4#
- 1...Kxh4
- 2.Qf4#
- 1...Sf2
- 2.Qg3#
- 1...Sg3
- 2.Qxg3#
- threat
- 1.Qc7!
Anticipated by 20955(1914), 21999(1923)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);P-FLIGHT,XB(C)::QAR2(H)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- Tries
- Try
- Q(H);
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(D)::B(F),XB(d)
- S(a);N_GUARD::QAR1(H),XS(a)
- B(d);::B(F)+P(D),XB(d)
- B(d);N_PINP(D)::B(F)+P(D)
- S(a);N_GUARD::QAR1(H)
- Refutation
- P(c);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- K(b);P-FLIGHT,XB(C)::QAR2(H)
- Refutation
- B(d);CHECK,P_SPINB(d),XP(D)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT,XB(C)::QAR2(H)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- Refutation
- B(d);CHECK,P_SPINB(d),XP(D)
- Try
- Actual
- Q(H);
- Threat
- QAR(H)
- Vars
- K(b);P-FLIGHT,XB(C)::QAR2(H)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
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).