MESON Chess Problem Database
Problem Display
PID: 257662 (8/1b3K2/8/R1ppkN2/5pp1/3Q1P2/4N3/8 w - - 0 1)
Shpakovsky, Aleksandr Nikolaevich
64 Shakhmatnoe obozrenie, 2022
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...c4
- 2.Qe4#
- 1...c4
- Tries
- 1.Qc4?
- threat
- 2.Qxf4#
- 1...Kxf5
- 2.Qxf4#
- 1...d4
- 2.Qe6#
- 1...dxc4!
- threat
- 1.Qd2?
- threat
- 2.Qxf4#
- 1...Kxf5
- 2.Qxf4#
- 1...d4!
- threat
- 1.Qc3+?
- 1...Kxf5
- 2.Qf6#
- 1...d4!
- 1...Kxf5
- 1.Qe3+?
- 1...Kxf5
- 2.Qxf4#
- 1...fxe3!
- 1...Kxf5
- 1.Qd4+?
- 1...Kxf5
- 2.Qf6#
- 2.Qxf4#
- 1...cxd4!
- 1...Kxf5
- 1.Qc4?
- Keys
- 1.Sed4!
- threat
- 2.Qe2#
- 1...gxf3
- 2.Sxf3#
- 1...cxd4
- 2.Qe4#
- 1...Ba6
- 2.Sc6#
- threat
- 1.Sed4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(c);P_SPINP(d)::QAR1(B)
- Tries
- Try
- Q(B);
- Threat
- QAB1(B),XP(a)
- Vars
- K(e);P-FLIGHT,XS(E)::QAR1(B),XP(a)
- P(d);OGATE,P_SPINP(c)::QAR1(B)
- Refutation
- P(d);P_SPINP(c),XQ(B)
- Try
- Q(B);
- Threat
- QAB1(B),XP(a)
- Vars
- K(e);P-FLIGHT,XS(E)::QAR1(B),XP(a)
- Refutation
- P(d);P_SPINP(c)
- Try
- Q(B);CHECK
- Vars
- K(e);OGATE,P-FLIGHT,XS(E)::QAR1(B)
- Refutation
- P(d);P_SPINP(d)
- Try
- Q(B);CHECK
- Vars
- K(e);P-FLIGHT,XS(E)::QAR1(B),XP(a)
- Refutation
- P(a);XQ(B)
- Try
- Q(B);CHECK
- Refutation
- P(c);P_SPINP(d),XQ(B)
- Try
- Actual
- S(A);
- Threat
- QAR(B)
- Vars
- P(b);XP(C)::S(A),XP(b)
- P(c);P_SPINP(d),XS(A)::QAR1(B)
- B(f);N_GUARD::S(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).