MESON Chess Problem Database

Problem Display
PID: 108782 (1KNR3B/3b2P1/7p/3k2nR/p1Nb2P1/3Q2P1/8/8 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Thema Danicum, 1985

1KNR3B/3b2P1/7p/3k2nR/p1Nb2P1/3Q2P1/8/8

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qf5#
  • Tries
    • 1.Se3+?
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.g8Q#
        • 2.g8B#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kc6!
    • 1.Sa5?
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.g8Q#
        • 2.g8B#
      • 1...Ke6
        • 2.Qf5#
      • 1...a3!
    • 1.S4b6+?
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.g8Q#
        • 2.g8B#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kc6!
    • 1.Rxg5+?
      • 1...Kc6
        • 2.Sa5#
        • 2.Se7#
        • 2.Qe4#
        • 2.Qf3#
      • 1...Ke6
        • 2.Qf5#
        • 2.g8Q#
        • 2.g8B#
      • 1...hxg5!
  • Keys
    • 1.Sa3!
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.g8Q#
        • 2.g8B#
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(b),N_SPINS(d),S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR1(A)
        • K(c);N_SPINB(b),P-FLIGHT::P=Q
        • K(c);N_SPINB(b),N_SPINS(d),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);N_SPINB(b),N_SPINS(d),S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR1(A)
        • K(c);N_SPINB(b),P-FLIGHT::P=Q
        • K(c);N_SPINB(b),N_SPINS(d),S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR1(A)
        • K(c);N_SPINB(b),P-FLIGHT::P=Q
        • K(c);N_SPINB(b),N_SPINS(d),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);N_SPINB(b),N_SPINS(d),S_FLIGHT
    • Try
      • R(E);CHECK,XS(d)
      • Refutation
        • P(e);XR(E)
  • Actual
    • S(C);
    • Vars
      • K(c);N_SPINB(b),P-FLIGHT::QAR1(A)
      • K(c);N_SPINB(b),P-FLIGHT::P=Q
      • K(c);N_SPINB(b),N_SPINS(d),S_FLIGHT::QAB1(A)
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