MESON Chess Problem Database

Problem Display
PID: 139785 (2Q5/2N3bq/4p3/6p1/1P2k1bp/8/2PPp2B/1B2K3 w - - 0 1)

Prikril, Mato

Liga Problemista, 1988/2

2Q5/2N3bq/4p3/6p1/1P2k1bp/8/2PPp2B/1B2K3

#2

8 + 8

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qxe6#
    • 1...Bf3
      • 2.c3#
    • 1...e5
      • 2.Qxg4#
  • Tries
    • 1.c4+?
      • 1...Kd4
        • 2.Sb5#
      • 1...Kf3!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qd3#
      • 1...Kf3
        • 2.Qxe2#
      • 1...Kd4
        • 2.c3#
      • 1...Kf5
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(b);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
    • B(c);SBLOCK::B(A)+P(C)
    • P(f);OGATE::QAR2(H),XB(c)
  • Tries
    • Try
      • P(C);CHECK
      • Vars
        • K(b);P-FLIGHT::S(G)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • K(b);S_FLIGHT::QAB1(H),XP(a)
      • K(b);P-FLIGHT::P(C)
      • K(b);S_FLIGHT::QAB1(H),XP(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).