MESON Chess Problem Database

Problem Display
PID: 195119 (1b2Q3/p2p4/4rP2/2B2p1P/2P1k3/1NpN2p1/2P3K1/1n6 w - - 0 1)

Todd, William R

Densmore MT (Pittsburgh Gazette-Times), 1918

1b2Q3/p2p4/4rP2/2B2p1P/2P1k3/1NpN2p1/2P3K1/1n6

#2

9 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qa8#
    • 1...f4
      • 2.Qg6#
    • 1...d6
      • 2.Qxe6#
  • Tries
    • 1.Bf2?
      • threat
        • 2.Sbc5#
      • 1...f4
        • 2.Qg6#
      • 1...Bd6
        • 2.Qa8#
      • 1...d6
        • 2.Qxe6#
      • 1...gxf2!
    • 1.Qxd7?
      • threat
        • 2.Qd4#
        • 2.Qd5#
      • 1...f4
        • 2.Qd5#
        • 2.Qh7#
      • 1...Re5
        • 2.Qd4#
      • 1...Be5
        • 2.Qd5#
      • 1...Bd6
        • 2.Qc6#
        • 2.Qb7#
      • 1...Rd6!
    • 1.Qxe6+?
      • 1...Be5
        • 2.Qd5#
        • 2.Qxe5#
      • 1...dxe6!
  • Keys
    • 1.Bg1!
      • threat
        • 2.Sbc5#
      • 1...f4
        • 2.Qg6#
      • 1...Bd6
        • 2.Qa8#
      • 1...d6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(i);OGATE::QAB(I)
    • P(e);OGATEB::QAB(I)
    • P(h);N_GUARD,S_CUTB(i)::QAR2(I),XR(f)
  • Tries
    • Try
      • B(F);
      • Threat
        • S(C)
      • Vars
        • P(e);OGATEB::QAB(I)
        • B(i);OGATE::QAB(I)
        • P(h);N_GUARD,S_CUTB(i)::QAR2(I),XR(f)
      • Refutation
        • P(c);XB(F)
    • Try
      • Q(I);N_PINR(f),XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::QAR1(I)
        • B(i);::QAB1(I)
      • Refutation
        • R(f);
    • Try
      • Q(I);CHECK,XR(f)
      • Refutation
        • P(h);XQ(I)
  • Actual
    • B(F);
    • Threat
      • S(C)
    • Vars
      • P(e);OGATEB::QAB(I)
      • B(i);OGATE::QAB(I)
      • P(h);N_GUARD,S_CUTB(i)::QAR2(I),XR(f)
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Developed and maintained by Brian Stephenson.
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