MESON Chess Problem Database

Problem Display
PID: 158629 (8/8/4nq2/B4p2/1Q2p3/4k2N/5NP1/2b2K2 w - - 0 1)

Animitsa, Khristofor Savvich

Thema Danicum, 1987

8/8/4nq2/B4p2/1Q2p3/4k2N/5NP1/2b2K2

#2

6 + 6

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Qxc3#
    • 1...Qd4
      • 2.Qe1#
    • 1...Qh4
      • 2.Qc3#
    • 1...Qg5
      • 2.Qc3#
    • 1...Qe7
      • 2.Qc3#
    • 1...Qg6
      • 2.Qc3#
    • 1...Qh6
      • 2.Qc3#
    • 1...Qf7
      • 2.Qc3#
    • 1...Qf8
      • 2.Qc3#
    • 1...Bb2
      • 2.Qd2#
    • 1...Bd2
      • 2.Qxd2#
    • 1...Ba3
      • 2.Qd2#
    • 1...Sd4
      • 2.Qc3#
    • 1...f4
      • 2.Qxe4#
  • Tries
    • 1.Bb6+?
      • 1...Qd4
        • 2.Qe1#
        • 2.Qc3#
      • 1...Sd4
        • 2.Qe1#
        • 2.Qc3#
      • 1...Sc5!
    • 1.Qb3+?
      • 1...Qc3
        • 2.Qxc3#
      • 1...Kd4!
    • 1.Qc4?
      • threat
        • 2.Sd1#
      • 1...Qc3
        • 2.Qxc3#
      • 1...Qd4
        • 2.Qe2#
      • 1...Qd8!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Sd1#
      • 1...Qd4
        • 2.Qg3#
      • 1...Sd4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • Q(f);N_GUARD::QAR2(E),XQ(f)
    • Q(f);SBLOCK::QAR2(E)
    • Q(f);N_GUARD::QAR2(E)
    • B(a);N_GUARD::QAB1(E)
    • B(a);N_GUARD::QAB1(E),XB(a)
    • S(e);S_CUTQ(f)::QAR2(E)
    • P(d);N_GUARD::QAR1(E),XP(c)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • Q(E);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::QAR2(E),XQ(f)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • S(B)
      • Vars
        • Q(f);N_GUARD::QAR2(E),XQ(f)
        • Q(f);SBLOCK::QAR1(E)
      • Refutation
        • Q(f);
  • Actual
    • Q(E);
    • Threat
      • S(B)
    • Vars
      • Q(f);SBLOCK::QAR2(E)
      • S(e);N_GUARD,SBLOCK::QAB1(E)
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