MESON Chess Problem Database

Problem Display
PID: 189690 (8/8/8/2K5/k7/p7/R1P5/8 w - - 0 1)

Fleckner, Otto

Frankisches Volksblatt, 1912

8/8/8/2K5/k7/p7/R1P5/8

#2

3 + 2

3713 Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Rxa3#
  • Tries
    • 1.c3?
      • 1...Ka5
        • 2.Rxa3#
      • 1...Kb3!
    • 1.c4?
      • 1...Ka5
        • 2.Rxa3#
      • 1...Kb3!
  • Keys
    • 1.Ra1!
      • 1...Ka5
        • 2.Rxa3#
      • 1...a2
        • 2.Rxa2#

This anticipates 173590(1926)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::R(A),XP(a)
  • Tries
    • Try
      • P(B);
      • Vars
        • K(b);P-FLIGHT::R(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(b);P-FLIGHT::R(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);P-FLIGHT::R(A),XP(a)
      • P(a);OGATEB::R(A),XP(a)
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