MESON Chess Problem Database

Problem Display
PID: 244543 (3N4/3q2R1/1p1kb3/2RppBB1/1P1N2p1/2pK1p2/2p5/n2n4 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

American Chess Bulletin, 1907

3N4/3q2R1/1p1kb3/2RppBB1/1P1N2p1/2pK1p2/2p5/n2n4

#2

8 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa4
      • 2.Sb7#
    • 1...Qb5+
      • 2.Sxb5#
    • 1...Qc6
      • 2.Rxc6#
    • 1...Qc8
      • 2.Sb5#
    • 1...Qe8
      • 2.Sb7#
    • 1...Qa7
      • 2.Sb5#
      • 2.Rc6#
    • 1...Qb7
      • 2.Sb5#
      • 2.Sxb7#
    • 1...Qc7
      • 2.Sb5#
    • 1...Qxd8
      • 2.Sb5#
      • 2.Rc6#
    • 1...Bg8
      • 2.Rxd7#
    • 1...exd4
      • 2.Bf4#
  • Tries
    • 1.Rxd7+?
      • 1...Bxd7
        • 2.Sb7#
        • 2.Sf7#
      • 1...Kxd7!
  • Keys
    • 1.Sb7+!
      • 1...Qxb7
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(l);N_GUARD::S(H)
    • Q(l);CHECK,N_GUARD::S(C),XQ(l)
    • Q(l);N_GUARD::R1(D),XQ(l)
    • Q(l);N_GUARD::S(C)
    • B(k);N_GUARD::R1(G),XQ(l)
    • P(h);OGATEB,XS(C)::B(F)
  • Tries
    • Try
      • R(G);CHECK,XQ(l)
      • Refutation
        • K(j);P-FLIGHT,P_SPINB(k),XR(G)
  • Actual
    • S(H);CHECK
    • Vars
      • Q(l);XS(H)::S(C)
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