MESON Chess Problem Database

Problem Display
PID: 51311 (Q7/3N4/8/3PP3/2nrk1P1/4P1KB/R2p3R/3N4 w - - 0 1)

Waterhouse, T

Manchester Guardian, 1957

Q7/3N4/8/3PP3/2nrk1P1/4P1KB/R2p3R/3N4

#2

11 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sc5#
    • 1...Rd3
      • 2.Bg2#
    • 1...Sxe3
      • 2.Sf2#
    • 1...Sxe5
      • 2.Sc5#
  • Tries
    • 1.Sf6+?
      • 1...Kd3
        • 2.Bf1#
      • 1...Kxe5!
    • 1.Ra3?
      • threat
        • 2.Sf2#
        • 2.Bg2#
      • 1...Sxe3
        • 2.Sf2#
        • 2.Rxe3#
      • 1...Sxe5
        • 2.Sf2#
        • 2.Sc5#
        • 2.Sf6#
      • 1...Rd3
        • 2.Bg2#
      • 1...Sxa3!
    • 1.d6+?
      • 1...Kd3
        • 2.Sc5#
        • 2.Bf1#
      • 1...Rd5!
  • Keys
    • 1.Qa6!
      • 1...Kd3
        • 2.Sc5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Rxd5
        • 2.Qg6#
      • 1...Sxe3
        • 2.Sc3#
      • 1...Sxe5
        • 2.Sf6#
      • 1...Sb2
        • 2.Bg2#
      • 1...Rd3
        • 2.Bg2#
      • 1...Sa3
        • 2.Bg2#
      • 1...Sa5
        • 2.Bg2#
      • 1...Sb6
        • 2.Bg2#
      • 1...Sd6
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::S(J)
    • R(c);P_PINP(D),SBLOCK::B(F)
    • S(b);SBLOCK,XP(D)::S(A)
    • S(b);SBLOCK,XP(I)::S(J)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(d);S_FLIGHT::B(F)
      • Refutation
        • K(d);P-FLIGHT,XP(I)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);P_PINP(D)::B(F)
      • Refutation
        • S(b);XR(B)
    • Try
      • P(H);CHECK
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(K);
    • Vars
      • K(d);P_SPINS(b),S_FLIGHT::S(J)
      • K(d);S_FLIGHT,XP(H)::S(A)
      • R(c);SBLOCK,XP(H)::QAB(K)
      • S(b);SBLOCK,XP(D)::S(A)
      • S(b);SBLOCK,XP(I)::S(J)
      • S(b);::B(F)
      • R(c);P_PINP(D),SBLOCK::B(F)
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Developed and maintained by Brian Stephenson.
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