MESON Chess Problem Database

Problem Display
PID: 167285 (8/5Q2/4Pn2/N7/1P2k2B/1K5P/6R1/7B w - - 0 1)

Johnson, Richard Wright

Huddersfield College Magazine, 1880

8/5Q2/4Pn2/N7/1P2k2B/1K5P/6R1/7B

#2

9 + 2

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rd2+?
      • 1...Ke3
        • 2.Bg5#
      • 1...Ke5
        • 2.Qxf6#
      • 1...Kf5
        • 2.Qxf6#
      • 1...Kf4!
    • 1.Rg3+?
      • 1...Kd4
        • 2.Sc6#
        • 2.Bxf6#
        • 2.Qxf6#
      • 1...Kf4
        • 2.Qxf6#
      • 1...Kf5
        • 2.Qxf6#
      • 1...Ke5!
  • Keys
    • 1.Sc4!
      • 1...Kd3
        • 2.Rd2#
      • 1...Kf3
        • 2.Rf2#
      • 1...Kd4
        • 2.Rd2#
      • 1...Kf4
        • 2.Rf2#
      • 1...Kd5
        • 2.Rd2#
      • 1...Kf5
        • 2.Rf2#
      • 1...Sg4
        • 2.Rd2#
      • 1...Sd5
        • 2.Rd2#
      • 1...Sh5
        • 2.Rd2#
      • 1...Sd7
        • 2.Rd2#
      • 1...Sh7
        • 2.Rd2#
      • 1...Se8
        • 2.Rd2#
      • 1...Sg8
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::B(F)
        • K(a);P-FLIGHT::QAB1(I),XS(b)
        • K(a);P_SPINS(b),S_FLIGHT::QAR1(I),XS(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(b)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINS(b)::QAR2(I),XS(b)
        • K(a);P_SPINS(b),S_FLIGHT::QAR1(I),XS(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(G);
    • Vars
      • K(a);S_FLIGHT::R1(B)
      • K(a);P_SPINS(b),S_FLIGHT::B(A)+R(B),DCHECK
      • K(a);P-FLIGHT::R(B)
      • K(a);P-FLIGHT,P_SPINS(b)::R(B)
      • K(a);S_FLIGHT::B(A)+R(B),DCHECK
      • K(a);P_SPINS(b),S_FLIGHT::R(B)
      • S(b);::B(A)+R(B)
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