MESON Chess Problem Database

Problem Display
PID: 205337 (3Qn2B/2p1p2p/4pq2/2K1k2b/7N/p4PN1/1bp5/2r5 w - - 0 1)

Hammond, Robert Lee

American Chess Bulletin, 1921

3Qn2B/2p1p2p/4pq2/2K1k2b/7N/p4PN1/1bp5/2r5

#2

6 + 12

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4+
      • 2.Qxd4#
    • 1...Sg7
      • 2.Qxc7#
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qe3#
        • 2.Qg5#
        • 2.f4#
      • 1...Bd4+
        • 2.Qxd4#
      • 1...Qxh8
        • 2.Qg5#
      • 1...Bxf3
        • 2.Sxf3#
        • 2.Qg5#
      • 1...Qg7
        • 2.Qg5#
      • 1...Re1
        • 2.Qg5#
        • 2.f4#
      • 1...Rf1
        • 2.Qe3#
        • 2.Qg5#
      • 1...Bg4
        • 2.Qe3#
        • 2.f4#
      • 1...Bg6
        • 2.f4#
      • 1...Sd6
        • 2.f4#
      • 1...Sg7
        • 2.Qe3#
      • 1...h6
        • 2.Qe3#
        • 2.f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);CHECK,N_GUARD::QAB1(E),XB(b)
    • S(l);N_GUARD,N_SPINQ(h)::QAB(E),XP(i)
  • Actual
    • Q(E);
    • Threat
      • DUALS(3)
    • Vars
      • B(b);CHECK,N_GUARD::QAB1(E),XB(b)
      • Q(h);N_SPINQ(h),XB(F)::QAR2(E)
      • Q(h);::QAR2(E)
      • B(f);::P(A)
      • S(l);::P(A)
      • S(l);N_SPINQ(h)::QAR2(E)
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