MESON Chess Problem Database

Problem Display
PID: 168150 (N3B3/2pR4/p1k5/7q/7P/1Q1P1b2/5Bp1/6K1 w - - 0 1)

Kirschmann, H

Arbeiter Schachzeitung, 1922

N3B3/2pR4/p1k5/7q/7P/1Q1P1b2/5Bp1/6K1

#2

8 + 6

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh4
      • 2.Rd5#
      • 2.Rd8#
    • 1...Qa5
      • 2.Rd5#
      • 2.Rd8#
    • 1...Qc5
      • 2.Rd4#
      • 2.Rd5#
      • 2.Rd8#
    • 1...Qd5
      • 2.Rxd5#
    • 1...Qg5
      • 2.Rd5#
      • 2.Rd8#
    • 1...Qh6
      • 2.Rd5#
      • 2.Rd8#
  • Tries
    • 1.Bg3?
      • threat
        • 2.Rxc7#
      • 1...Qc5+
        • 2.Rd4#
      • 1...Kc5
        • 2.Qc4#
      • 1...Qe5!
    • 1.Rd4+?
      • 1...Kc5
        • 2.Rd5#
        • 2.Rd8#
        • 2.Qc2#
        • 2.Qc4#
        • 2.Qa3#
        • 2.Qc3#
        • 2.Qb4#
      • 1...Qxe8!
    • 1.Re7+?
      • 1...Kd6
        • 2.Re6#
        • 2.Qe6#
      • 1...Qxe8!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Rxc7#
      • 1...Qxc5+
        • 2.Rd4#
      • 1...Kxc5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD::B(H)+R(F),XQ(c)
  • Tries
    • Try
      • B(B);
      • Threat
        • B(H)+R(F),DCHECK,XP(f)
      • Vars
        • Q(c);CHECK,N_GUARD,SBLOCK::B(H)+R(F)
        • K(e);P-FLIGHT::QAR1(C)
      • Refutation
        • Q(c);
    • Try
      • R(F);CHECK
      • Refutation
        • Q(c);XB(H)
    • Try
      • R(F);CHECK
      • Refutation
        • Q(c);XB(H)
  • Actual
    • B(B);
    • Threat
      • B(H)+R(F),DCHECK,XP(f)
    • Vars
      • Q(c);CHECK,N_GUARD,SBLOCK,XB(B)::B(H)+R(F)
      • K(e);OGATEB,P-FLIGHT,XB(B)::QAR1(C)
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