MESON Chess Problem Database

Problem Display
PID: 245447 (1N6/8/P7/k7/2KN1B2/2R5/8/8 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Kudesnik, 2011

1N6/8/P7/k7/2KN1B2/2R5/8/8

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc2?
      • 1...Ka4
        • 2.Ra3#
      • 1...Kb6!
    • 1.Sdc6+?
      • 1...Kb6
        • 2.Rb3#
      • 1...Ka4!
    • 1.Bc1?
      • 1...Ka4
        • 2.Ra3#
      • 1...Kb6!
    • 1.Bd6?
      • 1...Ka4
        • 2.Ra3#
      • 1...Kb6!
    • 1.Rc1?
      • 1...Ka4
        • 2.Ra1#
      • 1...Kb6!
    • 1.Rc2?
      • 1...Ka4
        • 2.Ra2#
      • 1...Kb6!
    • 1.a7?
      • 1...Ka4
        • 2.a8Q#
        • 2.a8R#
      • 1...Kb6!
  • Keys
    • 1.Sb5!
      • 1...Ka4
        • 2.Ra3#
      • 1...Kb6
        • 2.Bc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);P-FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);P-FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(E);
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT::R1(A)
      • K(a);S_FLIGHT::B(D)
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