MESON Chess Problem Database

Problem Display
PID: 253617 (5R2/6KR/4b1p1/6k1/4B1q1/4N3/6Qp/8 w - - 0 1)

Novitski, Petr Adrinovich

Problemist Ukraini, 2021

5R2/6KR/4b1p1/6k1/4B1q1/4N3/6Qp/8

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qxg4#
    • 1...Bb3
      • 2.Qxg4#
    • 1...Bc4
      • 2.Qxg4#
    • 1...Bd5
      • 2.Qxg4#
    • 1...Bf7
      • 2.Qxg4#
    • 1...Bg8
      • 2.Qxg4#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qf6#
      • 1...Qf3
        • 2.Qh4#
      • 1...Qf5
        • 2.Qh4#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Bf5!
  • Keys
    • 1.Qxh2!
      • threat
        • 2.Qh6#
      • 1...Qh3
        • 2.Qf4#
      • 1...Qh5
        • 2.Qf4#
      • 1...Qh4
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(d);N_GUARD::QAR1(A),XQ(b)
  • Tries
    • Try
      • Q(A);N_PINQ(b)
      • Threat
        • QAB1(A)
      • Vars
        • Q(b);N_GUARD::QAB1(A)
        • Q(b);N_GUARD::QAB1(A),XQ(b)
      • Refutation
        • B(d);
  • Actual
    • Q(A);N_PINQ(b),XP(a)
    • Threat
      • QAB1(A)
    • Vars
      • Q(b);N_GUARD::QAB1(A)
      • Q(b);N_GUARD::QAB1(A),XQ(b)
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