MESON Chess Problem Database

Problem Display
PID: 166808 (8/2npp3/4k1B1/3np2N/7K/1Q1R2B1/8/8 w - - 0 1)

Rimkus, Mecislovas

Sachmatija, 2010

8/2npp3/4k1B1/3np2N/7K/1Q1R2B1/8/8

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qb6#
    • 1...Sb5
      • 2.Qxd5#
    • 1...Sa6
      • 2.Qxd5#
    • 1...Sa8
      • 2.Qxd5#
    • 1...Se8
      • 2.Qxd5#
  • Tries
    • 1.Kg5?
      • 1...Kd6
        • 2.Qb6#
      • 1...e4
        • 2.Sg7#
      • 1...Sb5
        • 2.Qxd5#
      • 1...Sa6
        • 2.Qxd5#
      • 1...Sa8
        • 2.Qxd5#
      • 1...Se8
        • 2.Qxd5#
      • 1...d6!
    • 1.Sg7+?
      • 1...Kd6
        • 2.Qb6#
      • 1...Kf6!
    • 1.Qc4?
      • 1...d6
        • 2.Qg4#
      • 1...Sb5
        • 2.Qxd5#
      • 1...Sa6
        • 2.Qxd5#
      • 1...Sa8
        • 2.Qxd5#
      • 1...Se8
        • 2.Qxd5#
      • 1...e4
        • 2.Qxe4#
      • 1...Kd6!
  • Keys
    • 1.Qb8!
      • 1...Kd6
        • 2.Qb6#
      • 1...d6
        • 2.Qc8#
      • 1...Sc3
        • 2.Qg8#
      • 1...Se3
        • 2.Qg8#
      • 1...Sb4
        • 2.Qg8#
      • 1...Sf4
        • 2.Qg8#
      • 1...Sb6
        • 2.Qg8#
      • 1...Sf6
        • 2.Sg7#
      • 1...Sb5
        • 2.Qxe5#
      • 1...Sa6
        • 2.Qxe5#
      • 1...Sa8
        • 2.Qxe5#
      • 1...Se8
        • 2.Qxe5#
      • 1...e4
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,P_SPINP(b)::QAR2(A)
    • S(d);N_GUARD::QAB1(A),XS(a)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(c);P-FLIGHT,P_SPINP(b)::QAR2(A)
        • P(b);::S(E)
        • S(d);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • P(e);
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(b)::QAR2(A)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(e);SBLOCK::QAB(A)
        • S(d);N_GUARD::QAB1(A),XS(a)
        • P(b);OGATEB::QAR2(A),XP(b)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(b)
  • Actual
    • Q(A);N_PINS(a)
    • Vars
      • K(c);P-FLIGHT,P_SPINP(b),P_SPINS(a)::QAR2(A)
      • P(e);OGATEB,SBLOCK::QAB(A)
      • S(a);::QAB(A)
      • S(a);SBLOCK::S(E)
      • S(d);OGATE::QAR1(A),XP(b)
      • P(b);::QAB(A)
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