MESON Chess Problem Database

Problem Display
PID: 210918 (1K2B3/3p4/5n2/B1kp4/3N1P2/1P6/1P6/6Q1 w - - 0 1)

Muller, Hans Peter

Badische Neueste Nachrichten, 1971

1K2B3/3p4/5n2/B1kp4/3N1P2/1P6/1P6/6Q1

#2

8 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Bb4#
    • 1...d6
      • 2.Se6#
  • Tries
    • 1.Sb5+?
      • 1...Kxb5
        • 2.Qb6#
      • 1...Kc6
        • 2.Qb6#
      • 1...d4!
    • 1.Sf5+?
      • 1...Kb5
        • 2.Qb6#
      • 1...Kc6
        • 2.Qb6#
      • 1...d4!
    • 1.Se6+?
      • 1...Kb5
        • 2.Qb6#
      • 1...Kc6
        • 2.Qc5#
        • 2.Qb6#
      • 1...Kd6!
    • 1.Qc1+?
      • 1...Kd6
        • 2.Bb4#
      • 1...Kxd4!
    • 1.Qe1?
      • threat
        • 2.Qb4#
      • 1...Kd6
        • 2.Bb4#
        • 2.Qb4#
      • 1...Kxd4!
  • Keys
    • 1.Qg6!
      • 1...Kxd4
        • 2.Bb6#
      • 1...Kd6
        • 2.Bb4#
      • 1...Sxe8
        • 2.Qb6#
      • 1...Se4
        • 2.Qb6#
      • 1...Sg4
        • 2.Qb6#
      • 1...Sh5
        • 2.Qb6#
      • 1...Sh7
        • 2.Qb6#
      • 1...Sg8
        • 2.Qb6#
      • 1...d6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(F)
    • P(d);SBLOCK::QAB(A)+S(D),DCHECK
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,P_SPINP(d),XS(D)::QAR1(A)
        • K(a);OGATE,P-FLIGHT,P_SPINP(d)::QAR1(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,P_SPINP(d)::QAR1(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,P_SPINP(d)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT,XS(D)::B(F)
      • K(a);P_SPINS(c),S_FLIGHT::B(F)
      • S(c);OGATE,XB(H)::QAB1(A)
      • S(c);OGATE::QAB1(A)
      • P(d);N_GUARD,SBLOCK::S(D)
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