MESON Chess Problem Database

Problem Display
PID: 245911 (1N3k2/8/5K2/8/8/7p/R6R/8 w - - 0 1)

Hoffmann, Fritz

Europa-Rochade, 2002

1N3k2/8/5K2/8/8/7p/R6R/8

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rac2?
      • threat
        • 2.Rc8#
      • 1...Ke8
        • 2.Rc8#
      • 1...Kg8!
    • 1.Rhc2?
      • threat
        • 2.Rc8#
      • 1...Ke8
        • 2.Rc8#
      • 1...Kg8!
    • 1.Rxh3?
      • threat
        • 2.Rh8#
      • 1...Ke8
        • 2.Rh8#
      • 1...Kg8!
  • Keys
    • 1.Rag2!
      • 1...Ke8
        • 2.Rg8#
      • 1...hxg2
        • 2.Rh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(B);XP(a)
      • Threat
        • R(B)
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);P-FLIGHT::R(A)
      • P(a);OGATE,XR(A)::R(B)
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