MESON Chess Problem Database

Problem Display
PID: 16627 (1Bb5/3qRQ2/2Pr4/1N2P3/2pNk1p1/b4r2/2Kn1P2/7B w - - 0 1)

Gamage, Frederick

3rd Comm., American Chess Bulletin, 1942

1Bb5/3qRQ2/2Pr4/1N2P3/2pNk1p1/b4r2/2Kn1P2/7B

#2

10 + 9

5088 How to Solve Chess Problems 1945
5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Sc3#
  • Tries
    • 1.Qf5+?
      • 1...Kd5
        • 2.e6#
      • 1...Qxf5!
    • 1.exd6+?
      • 1...Qe6
        • 2.Qf5#
      • 1...Qxe7!
  • Keys
    • 1.e6!
      • threat
        • 2.Qf5#
      • 1...Kd5
        • 2.Qf5#
      • 1...Ke5
        • 2.exd7#
      • 1...Rxd4
        • 2.Sc3#
      • 1...Rd5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(g);SBLOCK,XS(D)::S(E)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR(I)+P(F)
      • Refutation
        • Q(h);XQ(I)
    • Try
      • P(F);CHECK,XR(g)
      • Vars
        • Q(h);P_SPINQ(h)::QAB1(I)
      • Refutation
        • Q(h);XR(H)
  • Actual
    • P(F);
    • Threat
      • QAB1(I)
    • Vars
      • K(e);S_FLIGHT::QAR2(I)
      • K(e);N_SPINR(c),P-FLIGHT,P_SPINR(g)::R(H)+P(F),XQ(h)
      • R(g);SBLOCK,XS(D)::S(E)
      • R(g);SBLOCK::QAR1(I)
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