MESON Chess Problem Database

Problem Display
PID: 49520 (Q7/1r1N2N1/4p3/1p1kP3/1PR3n1/2P5/3K4/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Black and White, 1893

Q7/1r1N2N1/4p3/1p1kP3/1PR3n1/2P5/3K4/8

#2

8 + 5

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qa2#
    • 1...bxc4
      • 2.Qxb7#
  • Tries
    • 1.Qa6?
      • threat
        • 2.Rd4#
        • 2.Qc6#
        • 2.Qxe6#
      • 1...Kxc4
        • 2.Qa2#
        • 2.Qxe6#
      • 1...Rxd7
        • 2.Qxb5#
        • 2.Qxe6#
      • 1...Sxe5
        • 2.Rd4#
        • 2.Qxe6#
      • 1...bxc4
        • 2.Qxb7#
      • 1...Rc7
        • 2.Rd4#
        • 2.Qxe6#
      • 1...Rb6!
    • 1.Qc8?
      • threat
        • 2.Rd4#
        • 2.Qc5#
        • 2.Qc6#
      • 1...Rxd7
        • 2.Qc5#
      • 1...Sxe5
        • 2.Rd4#
        • 2.Qc5#
      • 1...bxc4
        • 2.Qxb7#
      • 1...Rb6
        • 2.Rd4#
        • 2.Qc5#
      • 1...Rc7!
  • Keys
    • 1.Sf5!
      • 1...Kxc4
        • 2.Qa2#
      • 1...Sxe5
        • 2.Sb6#
      • 1...bxc4
        • 2.Qxb7#
      • 1...exf5
        • 2.Qg8#
      • 1...Sf2
        • 2.Se3#
      • 1...Sh2
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sf6
        • 2.Se3#
      • 1...Sh6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINR(e),OGATEB,S_FLIGHT,XR(D)::QAB(H)
    • P(b);SBLOCK,XR(D)::QAB(H),XR(e)
  • Tries
    • Try
      • Q(H);N_PINR(e)
      • Threat
        • DUALS(3)
      • Vars
        • P(b);SBLOCK,XR(D)::QAB(H),XR(e)
      • Refutation
        • R(e);
    • Try
      • Q(H);N_PINR(e)
      • Threat
        • DUALS(3)
      • Vars
        • R(e);XS(F)::QAR1(H)
        • P(b);SBLOCK,XR(D)::QAB(H),XR(e)
      • Refutation
        • R(e);
  • Actual
    • S(G);
    • Vars
      • K(c);N_SPINR(e),OGATEB,S_FLIGHT,XR(D)::QAB(H)
      • S(a);SBLOCK,XP(E)::S(F)
      • P(b);SBLOCK,XR(D)::QAB(H),XR(e)
      • P(d);OGATEB,XS(G)::QAB(H)
      • S(a);N_GUARD::S(G)
      • S(a);N_GUARD::S(G),XS(a)
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