MESON Chess Problem Database

Problem Display
PID: 268176 (8/8/4BR2/8/6N1/2Bkp3/1PR5/2K2n2 w - - 0 1)

Bylevski, Aleksandr

Probleemblad, 1985

8/8/4BR2/8/6N1/2Bkp3/1PR5/2K2n2

#2

7 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Rf3?
      • threat
        • 2.Sf2#
      • 1...Sd2
        • 2.Rxe3#
      • 1...Ke4!
    • 1.Rf4?
      • threat
        • 2.Se5#
        • 2.Bc4#
        • 2.Bf5#
        • 2.Rd4#
      • 1...e2
        • 2.Bc4#
        • 2.Bf5#
        • 2.Rd4#
      • 1...Sg3
        • 2.Se5#
        • 2.Bc4#
        • 2.Rd4#
      • 1...Sd2!
  • Keys
    • 1.Re2!
      • 1...Kxe2
        • 2.Bc4#
      • 1...Ke4
        • 2.Sf2#
      • 1...Sd2
        • 2.Rxe3#
      • 1...Sh2
        • 2.Rxe3#
      • 1...Sg3
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);P_PINP(c)
      • Threat
        • S(E)
      • Vars
        • S(a);N_GUARD::R1(G),XP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • R(G);
      • Threat
        • DUALS(4)
      • Refutation
        • S(a);
  • Actual
    • R(C);
    • Vars
      • K(b);N_GUARD,S_FLIGHT,XR(C)::B(F)
      • K(b);N_GUARD,P_SPINP(c),S_FLIGHT::S(E)
      • S(a);N_GUARD::R1(C),XP(c)
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