MESON Chess Problem Database

Problem Display
PID: 74500 (3Rb1r1/K5pN/1B1P4/2npkpN1/1Q3p2/8/8/6b1 w - - 0 1)

Gamage, Frederick

American Chess Bulletin, 1943

3Rb1r1/K5pN/1B1P4/2npkpN1/1Q3p2/8/8/6b1

#2

7 + 9

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Sf3#
    • 1...d4
      • 2.Qxc5#
  • Tries
    • 1.Qc3+?
      • 1...d4
        • 2.Qxc5#
      • 1...Bd4!
  • Keys
    • 1.d7!
      • threat
        • 2.Bc7#
      • 1...Kd6
        • 2.dxe8Q#
      • 1...Sxd7
        • 2.Qe7#
      • 1...d4
        • 2.Qxc5#
      • 1...Sb3
        • 2.Qe7#
      • 1...Sd3
        • 2.Qe7#
      • 1...Sa4
        • 2.Qe7#
      • 1...Se4
        • 2.Qe7#
      • 1...Sa6
        • 2.Qe7#
      • 1...Se6
        • 2.Sf3#
      • 1...Sb7
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(c);P_PINB(C),SBLOCK::S(B)
    • P(d);OGATEB::QAR2(A),XS(c)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • P(d);OGATEB,P_SPINP(d)::QAR2(A),XS(c)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • P(D);
    • Threat
      • B(C)
    • Vars
      • K(e);P_SPINS(c),S_FLIGHT::PXB(h)=Q
      • S(c);OGATE,P_PINB(C),XP(D)::QAR2(A)
      • P(d);OGATEB::QAR2(A),XS(c)
      • S(c);OGATE,P_PINB(C)::QAR2(A)
      • S(c);P_PINB(C),SBLOCK::S(B)
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