MESON Chess Problem Database

Problem Display
PID: 23618 (8/8/4B3/5K2/3Q4/1p1p4/2k5/R7 w - - 0 1)

Marandiuk, Mikhail Nazarovich

1st Prize, Prapor peremogi, 1972

8/8/4B3/5K2/3Q4/1p1p4/2k5/R7

#2

4 + 3

3753 FIDE Album (1971-1973) 1978
3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Tries
    • 1.Ke4?
      • 1...Kd2
        • 2.Qb2#
        • 2.Qxd3#
      • 1...b2
        • 2.Qxd3#
      • 1...d2!
    • 1.Kf4?
      • 1...Kd2
        • 2.Qb2#
      • 1...d2
        • 2.Bf5#
      • 1...b2!
    • 1.Rd1?
      • 1...b2
        • 2.Qxd3#
      • 1...d2
        • 2.Qxd2#
      • 1...Kxd1!
    • 1.Qc5+?
      • 1...Kb2
        • 2.Qc1#
      • 1...Kd2!
    • 1.Qb4?
      • 1...d2
        • 2.Qxb3#
      • 1...b2
        • 2.Bb3#
      • 1...Kb2!
    • 1.Qc4+?
      • 1...Kb2
        • 2.Qc1#
      • 1...Kd2!
  • Keys
    • 1.Bc4!
      • 1...Kd2
        • 2.Qxd3#
      • 1...b2
        • 2.Qxd3#
      • 1...d2
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(b);SBLOCK::QAB1(B),XP(c)
      • Refutation
        • P(c);
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT,P_SPINP(c)::QAR2(B)
        • P(c);OGATEB::B(D)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • P(b);SBLOCK::QAB1(B),XP(c)
        • P(c);OGATE::QAR1(B),XP(c)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XR(A)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(c);SBLOCK::QAB1(B),XP(b)
        • P(b);SBLOCK::B(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(c)::QAR1(B),XP(c)
      • P(b);SBLOCK::QAB1(B),XP(c)
      • P(c);SBLOCK::B(D)
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