MESON Chess Problem Database

Problem Display
PID: 9882 (5Bbn/2p3pq/5p2/p1P1k2N/p4NPb/2Kp4/1Q1P4/7B w - - 0 1)

Grinblat, Arieh

3rd Prize, Israel Ring Ty., 1960

5Bbn/2p3pq/5p2/p1P1k2N/p4NPb/2Kp4/1Q1P4/7B

#2

9 + 11

3841 The Art of Israeli Chess Composition 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.Kxd3#
    • 1...Bc4
      • 2.Kxc4#
    • 1...Sg6
      • 2.Kxd3#
    • 1...Sf7
      • 2.Kc4#
    • 1...f5
      • 2.Kxd3#
    • 1...c6
      • 2.Bd6#
      • 2.Qb8#
    • 1...g6
      • 2.Kxd3#
  • Tries
    • 1.Qb7?
      • threat
        • 2.Qxc7#
      • 1...Sf7
        • 2.Qd5#
      • 1...c6
        • 2.Bd6#
        • 2.Qc7#
        • 2.Qb8#
      • 1...g6
        • 2.Qe4#
      • 1...g5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qxc7#
      • 1...cxb6
        • 2.Bd6#
      • 1...Sf7
        • 2.Qe6#
      • 1...c6
        • 2.Bd6#
        • 2.Qc7#
        • 2.Qb8#
      • 1...g5
        • 2.Qxf6#
      • 1...g6
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(i);::QAB(B)+K(D),XP(a)
    • B(j);::QAB(B)+K(D),XB(j)
    • S(k);::QAB(B)+K(D),XP(a)
    • S(k);::QAB(B)+K(D)
    • P(f);::QAB(B)+K(D),XP(a)
    • P(h);::QAB(B)+K(D),XP(a)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB(B),XP(g)
      • Vars
        • S(k);S_CUTB(j)::QAR1(B)
        • P(h);S_CUTQ(i)::QAR1(B)
      • Refutation
        • P(h);
  • Actual
    • Q(B);
    • Threat
      • QAB(B),XP(g)
    • Vars
      • P(g);N_GUARD,XQ(B)::B(I)
      • S(k);S_CUTB(j)::QAR1(B)
      • P(h);N_GUARD,S_CUTB(c)::QAB1(B),XP(f)
      • P(h);S_CUTQ(i)::S(E),XP(a)
HTML5 logo

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).