MESON Chess Problem Database

Problem Display
PID: 163407 (8/8/8/8/8/3K3R/1R6/2kNBn2 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Sachmatija, 2004

8/8/8/8/8/3K3R/1R6/2kNBn2

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd1
      • 2.Rb1#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Rc3#
      • 1...Se3
        • 2.Bd2#
      • 1...Sg3+!
    • 1.Sc3?
      • threat
        • 2.Rb1#
        • 2.Rc2#
      • 1...Sd2
        • 2.Rc2#
      • 1...Se3
        • 2.Rb1#
      • 1...Kxb2!
    • 1.Bd2+?
      • 1...Kxd1
        • 2.Rb1#
      • 1...Sxd2!
  • Keys
    • 1.Rh1!
      • 1...Kxd1
        • 2.Rb1#
      • 1...Sd2
        • 2.Bxd2#
      • 1...Sh2
        • 2.Bd2#
      • 1...Se3
        • 2.Bd2#
      • 1...Sg3
        • 2.Bd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,XS(A)::R(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • R(E)
      • Vars
        • S(b);N_GUARD::B(B)
      • Refutation
        • S(b);CHECK
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::R1(C)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • B(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(A)::R(C)
      • Refutation
        • S(b);XB(B)
  • Actual
    • R(E);
    • Vars
      • K(a);P-FLIGHT,XS(A)::R(C)
      • S(b);N_GUARD::B(B),XS(b)
      • S(b);N_GUARD::B(B)
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