MESON Chess Problem Database

Problem Display
PID: 234744 (2N1k3/4P3/R1rRK3/8/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2014

2N1k3/4P3/R1rRK3/8/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Rd8#
    • 1...Rc2
      • 2.Rd8#
    • 1...Rc3
      • 2.Rd8#
    • 1...Rc4
      • 2.Rd8#
    • 1...Rc5
      • 2.Rd8#
    • 1...Rxd6+
      • 2.Sxd6#
    • 1...Rc7
      • 2.Rd8#
  • Keys
    • 1.Ra8!
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Rxc8
        • 2.Rxc8#
      • 1...Ra6
        • 2.Sa7#
      • 1...Rc1
        • 2.Rd8#
      • 1...Rc2
        • 2.Rd8#
      • 1...Rc3
        • 2.Rd8#
      • 1...Rc4
        • 2.Rd8#
      • 1...Rc5
        • 2.Rd8#
      • 1...Rb6
        • 2.Sxb6#
      • 1...Rc7
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);N_PINR(B)::R1(B)
    • R(a);CHECK,XR(B)::S(E),XR(a)
  • Actual
    • R(A);
    • Vars
      • R(a);CHECK,XR(B)::R(A)+S(E),DCHECK,XR(a)
      • R(a);N_PINR(B),OGATE,P_SPINR(a),XS(E)::R(A),XR(a)
      • R(a);N_GUARD::R(A)+S(E)
      • R(a);N_PINR(B)::R1(B)
      • R(a);N_GUARD::R(A)+S(E),XR(a)
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