MESON Chess Problem Database

Problem Display
PID: 200379 (k1K5/r7/8/8/8/8/7p/R6R w - - 0 1)

de Jong, Leonard Nicholaas

Op de Hoogte, 1918

k1K5/r7/8/8/8/8/7p/R6R

#2

3 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa1
      • 2.Rxa1#
    • 1...Ra2
      • 2.Rxa2#
    • 1...Ra3
      • 2.Rxa3#
    • 1...Ra4
      • 2.Rxa4#
    • 1...Ra5
      • 2.Rxa5#
    • 1...Ra6
      • 2.Rxa6#
  • Tries
    • 1.Ra2?
      • 1...Ra3
        • 2.Rxa3#
      • 1...Ra4
        • 2.Rxa4#
      • 1...Ra5
        • 2.Rxa5#
      • 1...Ra6
        • 2.Rxa6#
      • 1...Rxa2!
    • 1.Ra3?
      • 1...Ra4
        • 2.Rxa4#
      • 1...Ra5
        • 2.Rxa5#
      • 1...Ra6
        • 2.Rxa6#
      • 1...Rxa3!
    • 1.Ra4?
      • 1...Ra5
        • 2.Rxa5#
      • 1...Ra6
        • 2.Rxa6#
      • 1...Rxa4!
    • 1.Ra5?
      • 1...Ra6
        • 2.Rxa6#
      • 1...Rxa5!
    • 1.Rxh2?
      • 1...Ra2
        • 2.Raxa2#
        • 2.Rhxa2#
      • 1...Ra3
        • 2.Rxa3#
      • 1...Ra4
        • 2.Rxa4#
      • 1...Ra5
        • 2.Rxa5#
      • 1...Ra6
        • 2.Rxa6#
      • 1...Rxa1!
  • Keys
    • 1.Rhb1!
      • threat
        • 2.Rb8#
      • 1...Rxa1
        • 2.Rxa1#
      • 1...Ra2
        • 2.Rxa2#
      • 1...Ra3
        • 2.Rxa3#
      • 1...Ra4
        • 2.Rxa4#
      • 1...Ra5
        • 2.Rxa5#
      • 1...Ra6
        • 2.Rxa6#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(b);N_SPINR(b),OGATE,XR(A)::R(B),XR(b)
    • R(b);OGATEB::R(A),XR(b)
  • Tries
    • Try
      • R(A);
      • Vars
        • R(b);OGATEB::R(A),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XR(A)
    • Try
      • R(A);
      • Vars
        • R(b);OGATEB::R(A),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XR(A)
    • Try
      • R(A);
      • Vars
        • R(b);OGATEB::R(A),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XR(A)
    • Try
      • R(A);
      • Vars
        • R(b);OGATEB::R(A),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XR(A)
    • Try
      • R(B);XP(a)
      • Vars
        • R(b);OGATEB::R(A),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XR(A)
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • R(b);N_SPINR(b),OGATE,XR(A)::R(B),XR(b)
      • R(b);OGATEB::R(A),XR(b)
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