MESON Chess Problem Database

Problem Display
PID: 228790 (1rk5/Rb2K3/8/3N4/2B5/8/8/8 w - - 0 1)

Matthaus, Hans Georg

Deutsche Schachzeitung, 1970

1rk5/Rb2K3/8/3N4/2B5/8/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Rc7#
    • 1...Bc6
      • 2.Rc7#
    • 1...Ba8
      • 2.Rc7#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Bd7#
      • 1...Bc6
        • 2.Rc7#
      • 1...Ra8!
  • Keys
    • 1.Ba6!
      • 1...Bxa6
        • 2.Rc7#
      • 1...Ra8
        • 2.Rxa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::R1(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • B(a);OGATE::R1(C)
      • Refutation
        • R(b);
  • Actual
    • B(A);P_PINB(a)
    • Vars
      • B(a);N_SPINB(a),OGATE,XB(A)::R1(C)
      • R(b);OGATEB::R(C),XR(b)
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