MESON Chess Problem Database

Problem Display
PID: 70540 (1B6/8/2Q1P3/3Nr3/4k1BR/1P6/2K5/2n3b1 w - - 0 1)

Ceder, Sven Ture

Problemschack, 1938

1B6/8/2Q1P3/3Nr3/4k1BR/1P6/2K5/2n3b1

#2

8 + 4

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qc4#
    • 1...Bh2
      • 2.Qc4#
  • Tries
    • 1.Qa4+?
      • 1...Kxd5
        • 2.Qc4#
      • 1...Bd4!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxe5#
      • 1...Kxd5
        • 2.Qc4#
      • 1...Rxd5
        • 2.Bh3#
      • 1...Rxe6
        • 2.Bxe6#
      • 1...Rf5
        • 2.Bf3#
      • 1...Rg5
        • 2.Sf6#
      • 1...Rh5
        • 2.Sf6#
      • 1...Bh2
        • 2.Qc4#
      • 1...Bd4
        • 2.Qf3#
      • 1...Sd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT::QAR1(F)
    • B(b);N_GUARD::QAR2(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(E)::QAB1(F)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F),XR(d)
    • Vars
      • K(c);S_FLIGHT,XS(E)::QAB1(F)
      • R(d);SBLOCK,XS(E)::R(D)+B(C)
      • R(d);OGATE,XP(G)::R(D)+B(C),XR(d)
      • R(d);SBLOCK::R(D)+B(C),DCHECK
      • R(d);::S(E)
      • B(b);N_GUARD::QAR2(F)
      • B(b);SBLOCK::QAB1(F)
      • S(a);N_GUARD::QAB1(F),XS(a)
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