MESON Chess Problem Database

Problem Display
PID: 46370 (5KB1/4NR1b/3B3p/R3PN2/2k2qQ1/2prb3/2Pr4/8 w - - 0 1)

Gamage, Frederick

StrateGems, 2003

5KB1/4NR1b/3B3p/R3PN2/2k2qQ1/2prb3/2Pr4/8

#2

10 + 8

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Rxh7#
    • 1...Bd4
      • 2.Rxh7#
  • Tries
    • 1.Sxe3+?
      • 1...Rxe3
        • 2.Rxf4#
      • 1...Kd4!
    • 1.Qxf4+?
      • 1...Rd4
        • 2.Sxe3#
        • 2.Rxh7#
      • 1...Bd4
        • 2.Rxh7#
      • 1...Bxf4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Ra4#
      • 1...Qxf7+
        • 2.Bxf7#
      • 1...Kxd4
        • 2.Ra4#
      • 1...Qxd4
        • 2.Rxh7#
      • 1...Rxd4
        • 2.Qc8#
      • 1...Bxd4
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(f);S_CUTR(c)::B(J)+R(H),XB(h)
    • B(d);N_SPINQ(f),S_CUTR(c)::B(J)+R(H),XB(h)
  • Tries
    • Try
      • S(E);CHECK,P_SPINR(H),XB(d)
      • Vars
        • R(c);XS(E)::B(J)+R(H),DCHECK,XQ(f)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(B);CHECK,XQ(f)
      • Vars
        • B(d);P_SPINB(d)::B(J)+R(H),XB(h)
      • Refutation
        • B(d);XQ(B)
  • Actual
    • S(E);N_PINQ(f),P_SPINR(H)
    • Threat
      • R(C)
    • Vars
      • Q(f);CHECK,OGATE,P_SPINQ(f),XR(H)::B(J),XQ(f)
      • K(e);P-FLIGHT,P_SPINQ(f),XS(E)::R(C)
      • Q(f);N_PINR(H),P_SPINQ(f),XS(E)::B(J)+R(H),XB(h)
      • R(c);SBLOCK,XS(E)::QAR(B)
      • B(d);SBLOCK,XS(E)::QAB(B)
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