MESON Chess Problem Database

Problem Display
PID: 158631 (3q1n2/2B5/3N4/2p5/2K1Nk2/2Q2p1B/8/2b5 w - - 0 1)

Animitsa, Khristofor Savvich

Revista Romana de Sah, 1987

3q1n2/2B5/3N4/2p5/2K1Nk2/2Q2p1B/8/2b5

#2

6 + 6

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...f2
      • 2.Qg3#
  • Tries
    • 1.Qxf3+?
      • 1...Ke5
        • 2.Sf7#
        • 2.Qf5#
      • 1...Kxf3!
  • Keys
    • 1.Kd5!
      • threat
        • 2.Qxc1#
      • 1...Qg5+
        • 2.Sf5#
      • 1...Qxd6+
        • 2.Bxd6#
      • 1...Qa8+
        • 2.Sb7#
      • 1...Bb2
        • 2.Qd2#
      • 1...Bd2
        • 2.Qxd2#
      • 1...Ba3
        • 2.Qd2#
      • 1...Be3
        • 2.Qe5#
      • 1...f2
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK,XP(b)
      • Refutation
        • K(c);P-FLIGHT,XQ(A)
  • Actual
    • K(C);P_SPINS(E),S_FLIGHT
    • Threat
      • QAB(A),XB(a)
    • Vars
      • Q(e);CHECK,N_PINS(E)::B(F)+S(E)
      • Q(e);CHECK,OGATE,P_SPINQ(e),XS(E)::B(F),XQ(e)
      • B(a);N_GUARD::QAB(A)
      • B(a);N_GUARD::QAB(A),XB(a)
      • B(a);SBLOCK::QAB1(A)
      • P(b);OGATE::QAB1(A)
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