MESON Chess Problem Database

Problem Display
PID: 16175 (8/8/4B3/8/3pr3/3P1k1P/Q5NK/8 w - - 0 1)

Lewis, Robert Tony

Shanahan, Ian

StrateGems, 2000

8/8/4B3/8/3pr3/3P1k1P/Q5NK/8

#2

6 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Bg4#
    • 1...Re3
      • 2.Bg4#
    • 1...Rg4
      • 2.Bxg4#
    • 1...Re5
      • 2.Bg4#
  • Tries
    • 1.dxe4?
      • 1...Kxe4
        • 2.Qe2#
      • 1...d3!
  • Keys
    • 1.Qd2!
      • 1...Rxe6
        • 2.Sh4#
      • 1...Re2
        • 2.Qf4#
      • 1...Rf4
        • 2.Se1#
      • 1...Re1
        • 2.Sxe1#
        • 2.Sh4#
        • 2.Bg4#
      • 1...Re3
        • 2.Bg4#
      • 1...Rg4
        • 2.Se1#
        • 2.Bxg4#
      • 1...Rh4
        • 2.Se1#
        • 2.Sxh4#
      • 1...Re5
        • 2.Sh4#
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD::B(F)
    • R(c);N_GUARD::B(F),XR(c)
  • Tries
    • Try
      • P(D);XR(c)
      • Vars
        • K(a);S_FLIGHT,XP(D)::QAR2(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Vars
      • R(c);N_GUARD,XB(F)::S(B)
      • R(c);N_GUARD,P_PINS(B),SBLOCK::QAR1(A)
      • R(c);N_GUARD::S(B)
      • R(c);N_GUARD::B(F)
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