MESON Chess Problem Database

Problem Display
PID: 6571 (6BK/8/8/8/2R5/1kp5/1qp4Q/brr5 w - - 0 1)

Orlimont, PA (= Ernst Krieger)

Wiener Schachzeitung, 1931

6BK/8/8/8/2R5/1kp5/1qp4Q/brr5

#2

4 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ka2
      • 2.Ra4#
  • Tries
    • 1.Qb8+?
      • 1...Ka2
        • 2.Ra4#
      • 1...Ka3!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Rd4#
        • 2.Re4#
        • 2.Rf4#
        • 2.Rg4#
        • 2.Rh4#
      • 1...Rh1+
        • 2.Rh4#
      • 1...Ka2
        • 2.Ra4#
      • 1...Qa3
        • 2.Rb4#
      • 1...Qa2
        • 2.Qb4#
      • 1...Rd1
        • 2.Rd4#
      • 1...Re1
        • 2.Re4#
      • 1...Rf1
        • 2.Rf4#
      • 1...Rg1
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(f);S_FLIGHT::B(C)+R(B),DCHECK
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(f);S_FLIGHT::B(C)+R(B),DCHECK
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • DUALS(5)
    • Vars
      • R(c);CHECK::B(C)+R(B)
      • K(f);S_FLIGHT::B(C)+R(B),DCHECK
      • Q(d);SBLOCK::B(C)+R(B),DCHECK
      • Q(d);SBLOCK::QAR1(A)
      • R(c);::B(C)+R(B)
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Developed and maintained by Brian Stephenson.
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