MESON Chess Problem Database

Problem Display
PID: 157557 (8/3p4/R5R1/3k4/2N5/1K6/4N3/8 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 1970

8/3p4/R5R1/3k4/2N5/1K6/4N3/8

#2

5 + 2

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Ra5#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Ra5#
        • 2.Rg5#
      • 1...Kc5
        • 2.Ra5#
      • 1...Ke5
        • 2.Rg5#
      • 1...d6!
    • 1.Rad6+?
      • 1...Kc5
        • 2.Rg5#
      • 1...Ke4!
    • 1.Rgd6+?
      • 1...Kc5
        • 2.Ra5#
      • 1...Ke4!
  • Keys
    • 1.Sd6!
      • 1...Kc5
        • 2.Rg5#
      • 1...Ke5
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(D)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::R(D)
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • P(b);
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT::R(E)
      • K(a);P-FLIGHT::R(D)
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