MESON Chess Problem Database

Problem Display
PID: 149242 (7B/8/8/8/K1P5/1pRN4/8/kr6 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Kudesnik, 2013

7B/8/8/8/K1P5/1pRN4/8/kr6

#2

5 + 3

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...b2
      • 2.Ra3#
  • Tries
    • 1.Ka3?
      • 1...Rc1
        • 2.Rxc1#
      • 1...Rd1
        • 2.Rc1#
        • 2.Rxb3#
      • 1...Re1
        • 2.Rc1#
      • 1...Rf1
        • 2.Rc1#
      • 1...Rg1
        • 2.Rc1#
      • 1...Rh1
        • 2.Rc1#
      • 1...Rb2
        • 2.Rc1#
      • 1...b2!
    • 1.Rc1+?
      • 1...Ka2
        • 2.Sb4#
      • 1...b2!
    • 1.Rxb3+?
      • 1...Ka2
        • 2.Sb4#
        • 2.Ra3#
      • 1...Rb2!
  • Keys
    • 1.Sb4!
      • 1...Kb2
        • 2.Rc2#
      • 1...Rc1
        • 2.Rxc1#
      • 1...Rd1
        • 2.Rc1#
      • 1...Re1
        • 2.Rc1#
      • 1...Rf1
        • 2.Rc1#
      • 1...Rg1
        • 2.Rc1#
      • 1...Rh1
        • 2.Rc1#
      • 1...Rb2
        • 2.Rc1#
      • 1...b2
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE::R(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • R(b);::B(E)+R(A),DCHECK,XR(b)
        • R(b);::B(E)+R(A),DCHECK
        • R(b);S_CUTP(c)::R(A)
      • Refutation
        • P(c);
    • Try
      • R(A);CHECK,P_PINR(b)
      • Vars
        • K(a);N_SPINR(b),P-FLIGHT::S(B)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • R(A);CHECK,XP(c)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::B(E)+R(A),DCHECK
      • R(b);::B(E)+R(A),DCHECK,XR(b)
      • R(b);::B(E)+R(A),DCHECK
      • R(b);S_CUTP(c)::R(A)
      • P(c);OGATE::R(A)
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