MESON Chess Problem Database

Problem Display
PID: 46367 (1B1rr1n1/3p2p1/1Qq2kP1/5N1K/8/1n5B/b7/4R3 w - - 0 1)

Gamage, Frederick

Source?, 0000

1B1rr1n1/3p2p1/1Qq2kP1/5N1K/8/1n5B/b7/4R3

#2

7 + 9

145 StrateGems 2003
5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Be5#
  • Tries
    • 1.Qd4+?
      • 1...Re5
        • 2.Qxe5#
      • 1...Sxd4!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sd5#
      • 1...Rxe7
        • 2.Rf1#
      • 1...Sxe7
        • 2.Be5#
      • 1...Sa1
        • 2.Qd4#
      • 1...Sc1
        • 2.Qd4#
      • 1...Sd2
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sa5
        • 2.Qd4#
      • 1...Sc5
        • 2.Qb2#
      • 1...d5
        • 2.Qf2#
      • 1...d6
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • Q(c);S_CUTR(h)::B(G)
  • Tries
    • Try
      • Q(E);CHECK,N_PINQ(c)
      • Vars
        • R(h);N_GUARD,P_PINS(C),P_SPINR(h)::QAB1(E),XR(h)
      • Refutation
        • S(b);XQ(E)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(h);SBLOCK,XS(C)::R(A)
      • S(i);SBLOCK,XS(C)::B(G)
      • S(b);N_GUARD::QAB(E)
      • S(b);N_GUARD::QAB(E),XS(b)
      • S(b);OGATE::QAB(E)
      • P(e);::QAR(E)
      • P(e);N_GUARD,N_SPINQ(c),S_CUTQ(c)::R1(A)
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