MESON Chess Problem Database

Problem Display
PID: 68874 (2Q5/2b3p1/r1RN2K1/1pPk4/2pnN3/3R2B1/B1P5/4r3 w - - 0 1)

Kidson, Henry Edwin

The Chess Players' Quarterly Chronicle, 1871

2Q5/2b3p1/r1RN2K1/1pPk4/2pnN3/3R2B1/B1P5/4r3

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Qf5#
      • 2.Qg8#
    • 1...Bb6
      • 2.Sc3#
    • 1...Bxd6
      • 2.Sc3#
    • 1...Bb8
      • 2.Sc3#
    • 1...Bd8
      • 2.Sc3#
  • Tries
    • 1.Bxc4+?
      • 1...Kxc6
        • 2.Qe8#
      • 1...bxc4!
    • 1.Rxd4+?
      • 1...Kxc6
        • 2.Qe8#
      • 1...Kxd4!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Qe6#
      • 1...Rxc6+
        • 2.Scd6#
      • 1...Kxe4
        • 2.Sd2#
      • 1...Kxc6
        • 2.Se5#
      • 1...Rxe4
        • 2.Sa5#
      • 1...Be5
        • 2.Sc3#
      • 1...Bd6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • B(g);::S(E)
    • B(g);XS(H)::S(E)
  • Tries
    • Try
      • B(A);CHECK,XP(b)
      • Vars
        • K(e);N_SPINS(c),P_SPINB(g),S_FLIGHT,XR(G)::QAB(J)
      • Refutation
        • P(d);XB(A)
    • Try
      • R(C);CHECK,XS(c)
      • Vars
        • K(e);N_SPINP(b),P_SPINB(g),S_FLIGHT,XR(G)::QAB(J)
      • Refutation
        • K(e);N_SPINP(b),P-FLIGHT,XR(C)
  • Actual
    • S(H);P_SPINR(G),XP(b)
    • Threat
      • QAB1(J)
    • Vars
      • R(f);CHECK,N_GUARD,SBLOCK,XR(G)::B(A)+S(H)
      • K(e);N_SPINS(c),S_FLIGHT,XS(E)::S(H)
      • K(e);N_SPINS(c),P_SPINB(g),S_FLIGHT,XR(G)::S(H)
      • R(a);SBLOCK,XS(E)::B(A)+S(H)
      • B(g);::S(E)
      • B(g);N_PINR(G)::S(E)
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