MESON Chess Problem Database

Problem Display
PID: 157853 (8/5p1p/2p1pK1P/R1N1PpR1/3p1k2/3P1B2/5B2/6N1 w - - 0 1)

Sag, Andy

Chess in Australia, 1989

8/5p1p/2p1pK1P/R1N1PpR1/3p1k2/3P1B2/5B2/6N1

#2

10 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Ke7?
      • 1...Kxe5
        • 2.Bg3#
      • 1...f6
        • 2.Sxe6#
      • 1...Kxg5!
    • 1.Kxf7?
      • threat
        • 2.Sxe6#
      • 1...Kxe5
        • 2.Bg3#
      • 1...Kxg5!
    • 1.Se4?
      • 1...fxe4
        • 2.Rg4#
      • 1...c5!
    • 1.Be3+?
      • 1...dxe3
        • 2.Ra4#
      • 1...Kxe3!
    • 1.Rg6?
      • 1...fxg6
        • 2.Sxe6#
      • 1...hxg6!
  • Keys
    • 1.Kg7!
      • 1...Kxe5
        • 2.Bg3#
      • 1...Kxg5
        • 2.Sh3#
      • 1...f6
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XP(G)::B(B)
        • P(f);N_GUARD::S(F),XP(e)
      • Refutation
        • K(b);S_FLIGHT,XR(H)
    • Try
      • K(I);P-FLIGHT,XP(f)
      • Threat
        • S(F),XP(e)
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT,XP(G)::B(B)
      • Refutation
        • K(b);S_FLIGHT,XR(H)
    • Try
      • S(F);
      • Vars
        • P(c);N_GUARD,XS(F)::R1(H)
      • Refutation
        • P(d);
    • Try
      • B(B);CHECK
      • Vars
        • P(a);SBLOCK,XB(B)::R(E)
      • Refutation
        • K(b);S_FLIGHT,XB(B)
    • Try
      • R(H);
      • Vars
        • P(f);N_GUARD,XR(H)::S(F),XP(e)
      • Refutation
        • P(g);XR(H)
  • Actual
    • K(I);S_FLIGHT
    • Vars
      • K(b);P_SPINP(c),S_FLIGHT,XP(G)::B(B)
      • K(b);S_FLIGHT,XR(H)::S(A)
      • P(f);N_GUARD::S(F),XP(e)
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