MESON Chess Problem Database

Problem Display
PID: 68827 (1K4Q1/1p5p/1r1P4/8/7b/2R1RN1r/pp1p1pp1/3k4 w - - 0 1)

Novitski, Petr Adrinovich

1st Place, Source?, 2000

1K4Q1/1p5p/1r1P4/8/7b/2R1RN1r/pp1p1pp1/3k4

#2

6 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Qxb3#
    • 1...Ra6
      • 2.Qb3#
    • 1...Rc6
      • 2.Qb3#
    • 1...Rxd6
      • 2.Qb3#
  • Tries
    • 1.Qxg2?
      • threat
        • 2.Qf1#
      • 1...f1Q
        • 2.Qxd2#
      • 1...f1S
        • 2.Qe2#
      • 1...f1B
        • 2.Qxd2#
      • 1...f1R
        • 2.Qxd2#
        • 2.Qe2#
      • 1...Rh1!
  • Keys
    • 1.Qxa2!
      • threat
        • 2.Qb1#
      • 1...b1Q
        • 2.Qxd2#
      • 1...b1S
        • 2.Qc2#
      • 1...b1B
        • 2.Qxd2#
      • 1...b1R
        • 2.Qc2#
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(i);N_GUARD::QAB(F),XR(i)
    • R(i);N_GUARD::QAB(F)
    • R(i);N_GUARD,XP(D)::QAB(F)
  • Tries
    • Try
      • Q(F);XP(f)
      • Threat
        • QAR2(F)
      • Vars
        • P(e);OGATE::QAR1(F),XP(d)
        • P(e);OGATE::QAB1(F)
      • Refutation
        • R(g);
  • Actual
    • Q(F);XP(b)
    • Threat
      • QAR2(F)
    • Vars
      • P(c);OGATE::QAR1(F),XP(d)
      • P(c);OGATE::QAB1(F)
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