MESON Chess Problem Database

Problem Display
PID: 92889 (1n6/1p5K/r1kPQ2p/PR6/B7/8/5b1q/8 w - - 0 1)

Scheel, Johan

1st Prize, Tidskrift for Schack, 1915

1n6/1p5K/r1kPQ2p/PR6/B7/8/5b1q/8

#2

6 + 7

15 British Chess Magazine 1916
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Rb6#
    • 1...Bb6
      • 2.Rd5#
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rh5#
    • 1...Sd7
      • 2.Qd5#
  • Tries
    • 1.Rb4+?
      • 1...Kc5
        • 2.Rc4#
      • 1...b5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qc7#
      • 1...Kxd6
        • 2.Rd5#
      • 1...Qxd6
        • 2.Qxb7#
      • 1...Bc5
        • 2.Rb6#
      • 1...Bb6
        • 2.Rd5#
      • 1...Sd7
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::B(A)+R(C),DCHECK
    • S(g);SBLOCK::QAB1(E)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(C)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • K(d);P-FLIGHT,XP(D)::R1(C)
      • Q(b);SBLOCK,XP(D)::QAB1(E),XP(f)
      • B(a);SBLOCK::B(A)+R(C),DCHECK
      • B(a);S_CUTP(f)::B(A)+R(C)
      • S(g);SBLOCK::QAB1(E)
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