MESON Chess Problem Database

Problem Display
PID: 99052 (2n3bq/8/R1P5/1N1k1Bb1/n7/1PpN3p/2Q5/5K2 w - - 0 1)

Boitmanis, Andris

Magyar Sakkelet, 1986

2n3bq/8/R1P5/1N1k1Bb1/n7/1PpN3p/2Q5/5K2

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...h2
      • 2.Qg2#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qf3#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qe5
        • 2.Sb4#
      • 1...Qh5
        • 2.Qd4#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sd6
        • 2.Sc7#
      • 1...Qh4!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qh1#
      • 1...Qd4
        • 2.Sc7#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qh4
        • 2.Qe5#
      • 1...Qh5
        • 2.Qe5#
      • 1...Sc5
        • 2.Sb4#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • P(b);N_GUARD::QAB(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • Q(h);N_GUARD::QAR1(B),XQ(h)
        • Q(h);SBLOCK::S(D)
        • Q(h);N_GUARD::QAR1(B)
        • S(c);N_GUARD::QAR1(B),XS(c)
        • S(f);SBLOCK::S(E)
      • Refutation
        • Q(h);
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • Q(h);SBLOCK::S(E)
      • Q(h);N_GUARD::QAR1(B),XQ(h)
      • Q(h);N_GUARD::QAR1(B)
      • S(c);SBLOCK::S(D)
      • S(f);N_GUARD::QAR1(B),XS(f)
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