MESON Chess Problem Database

Problem Display
PID: 74460 (q5k1/1p1NpR2/6Bp/b2r4/8/1r5p/Q7/B5RK w - - 0 1)

Gamage, Frederick

The Chess Review, 1942

q5k1/1p1NpR2/6Bp/b2r4/8/1r5p/Q7/B5RK

#2

7 + 9

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Rf8#
    • 1...Qa7
      • 2.Rf8#
    • 1...Qf8
      • 2.Rxf8#
    • 1...Be1
      • 2.Qxa8#
    • 1...Bd2
      • 2.Qxa8#
    • 1...Bc3
      • 2.Qxa8#
    • 1...Bb4
      • 2.Qxa8#
    • 1...Bd8
      • 2.Rf8#
  • Tries
    • 1.Sf6+?
      • 1...Kh8
        • 2.Rh7#
      • 1...exf6!
  • Keys
    • 1.Rh7!
      • threat
        • 2.Rh8#
      • 1...Rb2
        • 2.Bc2#
      • 1...Rc3
        • 2.Bd3#
      • 1...Rd4
        • 2.Be4#
      • 1...Re5
        • 2.Bf5#
      • 1...Bc3
        • 2.Qxa8#
      • 1...e5
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • Q(h);N_GUARD::R1(G)
    • Q(h);N_GUARD::R1(G),XQ(h)
    • B(c);OGATE::QAR(D),XQ(h)
    • B(c);S_CUTQ(h)::R1(G)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(i);P-FLIGHT::R1(G)
      • Refutation
        • P(g);XS(F)
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • R(a);N_GUARD,P_SPINR(d)::R(B)+B(E)
      • R(a);P_SPINR(d)::R(B)+B(E)
      • R(d);N_GUARD,P_SPINR(a)::R(B)+B(E)
      • R(d);P_SPINR(a)::R(B)+B(E)
      • B(c);OGATE::QAR(D),XQ(h)
      • P(g);S_CUTR(d)::R(B)+B(E)
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