MESON Chess Problem Database

Problem Display
PID: 154530 (5N2/4p3/8/1KPkpR2/3bN3/4n1n1/2P1Rr1B/1B4Q1 w - - 0 1)

Burkinshaw, TE

Sheffield Guardian (The), 1910

(First published on Fri Dec 30 1910)

5N2/4p3/8/1KPkpR2/3bN3/4n1n1/2P1Rr1B/1B4Q1

#2

10 + 7

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.c4#
    • 1...Sd1
      • 2.Ba2#
      • 2.c4#
    • 1...Sef1
      • 2.Ba2#
      • 2.c4#
    • 1...Sxc2
      • 2.Ba2#
    • 1...Sg2
      • 2.Ba2#
      • 2.c4#
    • 1...Sg4
      • 2.Ba2#
      • 2.c4#
    • 1...Sexf5
      • 2.Ba2#
      • 2.c4#
    • 1...e6
      • 2.Sf6#
  • Tries
    • 1.Ba2+?
      • 1...Sc4
        • 2.Bxc4#
      • 1...Kxe4!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Sc3#
      • 1...Kxe4
        • 2.c4#
      • 1...Sxd1
        • 2.Ba2#
        • 2.c4#
      • 1...Sxe2
        • 2.Rxe5#
      • 1...Sxe4
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(e);N_SPINP(f),P_SPINS(b),S_FLIGHT,XS(F)::B(A)+P(C)
    • S(b);N_GUARD,XP(C)::B(A)
    • P(g);N_GUARD::S(F)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
      • Refutation
        • K(e);N_SPINP(f),P_SPINS(b),S_FLIGHT,XS(F)
  • Actual
    • Q(B);P_PINB(d)
    • Threat
      • S(F)
    • Vars
      • K(e);N_SPINB(d),N_SPINP(f),P_SPINS(b),S_FLIGHT,XS(F)::B(A)+P(C)
      • S(c);XR(D)::R1(I),XP(f)
      • S(c);XS(F)::R1(I),XP(f)
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