MESON Chess Problem Database

Problem Display
PID: 145899 (K5Q1/5N2/4p3/3Nn3/4k3/1P6/2P2R2/6B1 w - - 0 1)

Bourne, Stanley

3rd HM., Good Companions (December Meredith Ty.), 1917

K5Q1/5N2/4p3/3Nn3/4k3/1P6/2P2R2/6B1

#2

8 + 3

5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Rf3#
      • 1...Ke3!
    • 1.Sf6+?
      • 1...Kd4
        • 2.Rf3#
      • 1...Ke3!
    • 1.Sg5+?
      • 1...Kd4
        • 2.Rd2#
      • 1...Kxd5!
    • 1.Sd6+?
      • 1...Kd4
        • 2.Rd2#
      • 1...Kxd5!
    • 1.Re2+?
      • 1...Kf3
        • 2.Re3#
        • 2.Qg2#
      • 1...Kf5
        • 2.Sd6#
        • 2.Sh6#
        • 2.Rxe5#
        • 2.Qg5#
      • 1...Kxd5!
    • 1.Qg2+?
      • 1...Kd4
        • 2.Rf1#
        • 2.Rd2#
        • 2.Re2#
        • 2.Rf4#
        • 2.Rf5#
        • 2.Rf6#
      • 1...Sf3!
  • Keys
    • 1.Rf5!
      • 1...Kxd5
        • 2.Qg2#
      • 1...Kxf5
        • 2.Sd6#
      • 1...Sxf7
        • 2.Qg4#
      • 1...exd5
        • 2.Sd6#
      • 1...exf5
        • 2.Sg5#
      • 1...Sd3
        • 2.Sd6#
      • 1...Sf3
        • 2.Sd6#
        • 2.Qg4#
      • 1...Sc4
        • 2.Qg4#
      • 1...Sg4
        • 2.Sd6#
        • 2.Qxg4#
      • 1...Sc6
        • 2.Sd6#
        • 2.Qg4#
      • 1...Sg6
        • 2.Sd6#
      • 1...Sd7
        • 2.Sd6#
        • 2.Qg4#

Anticipated by 141336(1908)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)+R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)+R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)+R(C),DCHECK
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XS(E)
    • Try
      • S(F);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)+R(C),DCHECK
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT,XS(E)
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • Q(H);CHECK
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • R(C);
    • Vars
      • K(a);P_SPINS(b),S_FLIGHT,XS(E)::QAB(H)
      • K(a);S_FLIGHT,XR(C)::S(F)
      • S(b);N_GUARD,XS(F)::QAR2(H)
      • P(c);XS(E)::S(F)
      • P(c);SBLOCK,XR(C)::S(F)
      • S(b);::S(F)
      • S(b);N_GUARD::QAR2(H)
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