MESON Chess Problem Database

Problem Display
PID: 244095 (7B/8/8/8/2K5/8/kp6/b4Q2 w - - 0 1)

Ilyasov, Stanislav Alekseevich

Probleemblad, 1981

7B/8/8/8/2K5/8/kp6/b4Q2

#2

3 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qg2?
      • 1...Ka3
        • 2.Qa8#
      • 1...Kb1!
    • 1.Qe1?
      • 1...Ka3
        • 2.Qa5#
      • 1...b1Q
        • 2.Qa5#
      • 1...b1B
        • 2.Qa5#
      • 1...b1R
        • 2.Qa5#
      • 1...b1S!
    • 1.Qg1?
      • 1...Ka3
        • 2.Qa7#
      • 1...b1Q
        • 2.Qa7#
      • 1...b1B
        • 2.Qa7#
      • 1...b1R
        • 2.Qa7#
      • 1...b1S!
    • 1.Qh1?
      • 1...Ka3
        • 2.Qa8#
      • 1...b1Q
        • 2.Qa8#
      • 1...b1B
        • 2.Qa8#
      • 1...b1R
        • 2.Qa8#
      • 1...b1S!
    • 1.Qf2?
      • 1...Ka3
        • 2.Qa7#
      • 1...Kb1!
    • 1.Qf3?
      • 1...b1Q
        • 2.Qa8#
      • 1...b1S
        • 2.Qb3#
      • 1...b1B
        • 2.Qa8#
        • 2.Qb3#
      • 1...b1R
        • 2.Qa8#
      • 1...Kb1!
    • 1.Qf5?
      • 1...Ka3
        • 2.Qa5#
      • 1...b1Q
        • 2.Qa5#
      • 1...b1B
        • 2.Qa5#
      • 1...b1R
        • 2.Qa5#
      • 1...b1S!
    • 1.Qf6?
      • 1...Ka3
        • 2.Qa6#
      • 1...b1Q
        • 2.Qa6#
      • 1...b1S
        • 2.Qxa1#
      • 1...b1B
        • 2.Qxa1#
        • 2.Qa6#
      • 1...b1R
        • 2.Qa6#
      • 1...Kb1!
    • 1.Qf7?
      • 1...Ka3
        • 2.Qa7#
      • 1...b1Q
        • 2.Qa7#
      • 1...b1S
        • 2.Kb4#
      • 1...b1B
        • 2.Kb4#
        • 2.Qa7#
      • 1...b1R
        • 2.Qa7#
      • 1...Kb1!
  • Keys
    • 1.Qd1!
      • 1...Ka3
        • 2.Qb3#
      • 1...b1Q
        • 2.Qa4#
      • 1...b1S
        • 2.Qb3#
      • 1...b1B
        • 2.Qb3#
        • 2.Qa4#
      • 1...b1R
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • P(c);SBLOCK::QAR(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR(A)
        • P(c);SBLOCK::QAR(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR(A)
        • P(c);SBLOCK::QAR(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(c);SBLOCK::QAR(A)
        • P(c);::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • P(c);SBLOCK::QAR(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR(A)
        • P(c);SBLOCK::QAR(A)
        • P(c);OGATE::QAR1(A),XB(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR(A)
        • P(c);SBLOCK::QAR(A)
        • P(c);SBLOCK::QAB(A)+K(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
      • P(c);SBLOCK::QAR2(A)
      • P(c);::QAB1(A)
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