MESON Chess Problem Database

Problem Display
PID: 255813 (3K4/kpP5/bR6/Q7/8/8/8/8 w - - 0 1)

Gotenberg, P

Wiener Schachzeitung, 1936

3K4/kpP5/bR6/Q7/8/8/8/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2021
3713 Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb7+?
      • 1...Ka8
        • 2.Qxa6#
        • 2.c8Q#
      • 1...Kxb7!
  • Keys
    • 1.Qd5!
      • 1...Kxb6
        • 2.c8S#
      • 1...Ka8
        • 2.Rxa6#
      • 1...Bf1
        • 2.Qxb7#
      • 1...Be2
        • 2.Qxb7#
      • 1...Bd3
        • 2.Qxb7#
      • 1...Bc4
        • 2.Qxb7#
      • 1...Bb5
        • 2.Qxb7#

This anticipates 23725(1996)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK,XP(c)
      • Refutation
        • K(b);N_SPINB(a),P-FLIGHT,XR(B)
  • Actual
    • Q(A);N_PINB(a)
    • Vars
      • K(b);N_GUARD,S_FLIGHT,XR(B)::P=S
      • K(b);N_GUARD,P-FLIGHT,P_SPINP(c)::R(B),XB(a)
      • B(a);N_GUARD::QAR1(A),XP(c)
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