MESON Chess Problem Database

Problem Display
PID: 27348 (2N5/2pb3r/4p1QR/N2k1P2/8/P1P2K2/8/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

StrateGems, 2001

2N5/2pb3r/4p1QR/N2k1P2/8/P1P2K2/8/8

#2

8 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qg1?
      • threat
        • 2.Qd4#
      • 1...Ke5
        • 2.Qc5#
      • 1...e5
        • 2.c4#
      • 1...c5!
    • 1.Qxe6+?
      • 1...Kc5
        • 2.Qc4#
        • 2.Qe5#
      • 1...Bxe6!
    • 1.Qf6?
      • threat
        • 2.Qd4#
      • 1...Kc5
        • 2.Qe5#
      • 1...c5
        • 2.c4#
      • 1...e5!
    • 1.c4+?
      • 1...Kc5
        • 2.Qg1#
      • 1...Ke5
        • 2.Qf6#
      • 1...Kd4!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qd4#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.Qe4#
      • 1...e5
        • 2.Qc4#
      • 1...c5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
        • P(b);SBLOCK::P(B)
      • Refutation
        • P(c);
    • Try
      • Q(F);CHECK,XP(b)
      • Refutation
        • B(d);XQ(F)
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
        • P(c);SBLOCK::P(B)
      • Refutation
        • P(b);
    • Try
      • P(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB(F)
        • K(a);P-FLIGHT::QAB1(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • K(a);P-FLIGHT::QAR1(F)
      • P(b);SBLOCK::QAB1(F)
      • P(c);SBLOCK::QAB1(F)
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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).