MESON Chess Problem Database

Problem Display
PID: 75598 (4r3/1bPpP3/1Pk1q1Qr/PR1N4/2N2B2/3pP3/K6p/1R5B w - - 0 1)

Gamage, Frederick

1st Prize, Home News, 1947

4r3/1bPpP3/1Pk1q1Qr/PR1N4/2N2B2/3pP3/K6p/1R5B

#2

13 + 8

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Se5#
      • 2.Sc3#
    • 1...Rxe7
      • 2.Sxe7#
    • 1...Rb8
      • 2.cxb8S#
    • 1...Rd8
      • 2.cxd8S#
      • 2.exd8S#
  • Tries
    • 1.Qxe6+?
      • 1...dxe6
        • 2.Sf6#
      • 1...d6
        • 2.Se5#
        • 2.Sc3#
        • 2.Sf6#
      • 1...Rxe6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Rc1#
      • 1...Qxd5+
        • 2.Bxd5#
      • 1...Qxe3
        • 2.Sxe3#
        • 2.Sb4#
      • 1...Qxd6
        • 2.Sc3#
      • 1...Qe4
        • 2.Sb4#
      • 1...Qe5
        • 2.Sb4#
      • 1...Qf6
        • 2.Sc3#
        • 2.Sb4#
        • 2.Sxf6#
      • 1...d2
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(h);XP(M)::B(B)+S(I),DCHECK,XR(h)
    • R(h);OGATE::PXR(h)=S
  • Tries
    • Try
      • Q(K);CHECK,XQ(d)
      • Vars
        • P(g);XQ(K)::B(B)+S(I)
      • Refutation
        • R(e);XQ(K)
  • Actual
    • S(E);N_PINQ(d),P_SPINS(I)
    • Threat
      • R(A)
    • Vars
      • Q(d);CHECK,OGATE,P_SPINQ(d),XS(I)::B(B),XQ(d)
      • Q(d);N_PINS(I),P_SPINQ(d),XS(E)::B(B)+S(I)
      • Q(d);N_PINS(I)::S(I)
      • Q(d);N_PINS(I)::B(B)+S(I),DCHECK
      • P(b);OGATE::QAR(K)
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