MESON Chess Problem Database

Problem Display
PID: 46642 (3K4/5p2/1n2k3/1BB5/5Q2/8/8/8 w - - 0 1)

Belchikov, Nikolai Ivanovich

Problemista, 1972

3K4/5p2/1n2k3/1BB5/5Q2/8/8/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qf5#
    • 1...Sa4
      • 2.Bc4#
    • 1...Sc4
      • 2.Bxc4#
    • 1...Sd5
      • 2.Bd7#
    • 1...Sd7
      • 2.Bc4#
    • 1...Sa8
      • 2.Bc4#
    • 1...Sc8
      • 2.Bc4#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Qd6#
        • 2.Qf5#
      • 1...Kd5
        • 2.Qd6#
      • 1...f5
        • 2.Qxf5#
      • 1...Sc4
        • 2.Bxc4#
        • 2.Qf5#
      • 1...Sc8
        • 2.Bc4#
        • 2.Qf5#
      • 1...f6!
    • 1.Bd7+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Sxd7!
    • 1.Be8?
      • threat
        • 2.Bxf7#
      • 1...f5
        • 2.Qd6#
      • 1...f6
        • 2.Qe4#
      • 1...Kd5!
    • 1.Qf6+?
      • 1...Kd5
        • 2.Qf5#
      • 1...Kxf6!
  • Keys
    • 1.Ke8!
      • 1...Kd5
        • 2.Qf5#
      • 1...f5
        • 2.Qd6#
      • 1...Sa4
        • 2.Bc4#
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sd5
        • 2.Bd7#
      • 1...Sd7
        • 2.Bc4#
      • 1...Sa8
        • 2.Bc4#
      • 1...Sc8
        • 2.Bc4#
      • 1...f6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR2(A)
    • S(a);N_GUARD::B(B)
    • S(a);N_GUARD::B(B),XS(a)
    • S(a);N_GUARD,SBLOCK::B(B)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • P(c);::QAB1(A),XP(c)
      • Refutation
        • P(c);
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • S(a);XB(B)
    • Try
      • B(B);
      • Threat
        • B(B),XP(c)
      • Vars
        • P(c);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT::QAR2(A)
      • P(c);SBLOCK::QAR1(A)
      • S(a);N_GUARD::B(B)
      • S(a);N_GUARD::B(B),XS(a)
      • S(a);N_GUARD,SBLOCK::B(B)
      • P(c);SBLOCK::QAR2(A)
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