MESON Chess Problem Database

Problem Display
PID: 156229 (4K1B1/6p1/6n1/3pk3/3p3N/3R4/5N2/2Q5 w - - 0 1)

Mead, Walter

Source?, 0000

4K1B1/6p1/6n1/3pk3/3p3N/3R4/5N2/2Q5

#2

6 + 5

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Sg4#
  • Tries
    • 1.Sg4+?
      • 1...Kd6
        • 2.Sf5#
      • 1...Ke4!
    • 1.Sf3+?
      • 1...Kf5
        • 2.Qg5#
      • 1...Kf6
        • 2.Qg5#
      • 1...Kd6!
  • Keys
    • 1.Rxd4!
      • 1...Kxd4
        • 2.Sf3#
      • 1...Kd6
        • 2.Rxd5#
      • 1...Kf6
        • 2.Sg4#
      • 1...Sxh4
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Se7
        • 2.Qf4#
      • 1...Sf8
        • 2.Qf4#
      • 1...Sh8
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(B)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);S_FLIGHT::S(D)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(C);XP(a)
    • Vars
      • K(c);S_FLIGHT,XR(C)::S(D)
      • K(c);P_SPINP(b),S_FLIGHT::R1(C),XP(b)
      • K(c);S_FLIGHT::S(B)
      • S(d);N_GUARD,XS(D)::QAB1(A)
      • S(d);N_GUARD::QAB1(A),XS(d)
      • S(d);N_GUARD::QAB1(A)
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