MESON Chess Problem Database

Problem Display
PID: 75066 (b3r3/1B1pRQNp/2q1n2K/1P1k1P1p/1Pp4r/2p1PN2/3b2PB/3R4 w - - 0 1)

Gamage, Frederick

1st Prize, Chess Correspondent, 1945

b3r3/1B1pRQNp/2q1n2K/1P1k1P1p/1Pp4r/2p1PN2/3b2PB/3R4

#2

13 + 12

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Rxd7#
    • 1...d6
      • 2.Qxe6#
  • Tries
    • 1.Bxc6+?
      • 1...dxc6
        • 2.Qxe6#
      • 1...Bxc6!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qd4#
      • 1...Sxg7
        • 2.Qd6#
      • 1...Re4
        • 2.Rxd7#
      • 1...Sd4
        • 2.Qd6#
      • 1...Sf4
        • 2.e4#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sg5
        • 2.Qd6#
      • 1...Sc7
        • 2.Qd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...Sf8
        • 2.Qd6#
      • 1...d6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(d);SBLOCK::R(K),XP(i)
    • P(i);N_GUARD::QAB1(L),XS(h)
  • Tries
    • Try
      • B(J);CHECK,XQ(g)
      • Vars
        • P(i);XB(J)::QAB1(L),XS(h)
      • Refutation
        • B(k);XB(J)
  • Actual
    • Q(L);N_PINS(h)
    • Threat
      • QAR1(L)
    • Vars
      • K(e);N_SPINB(a),P_SPINS(h),S_FLIGHT::QAR1(L)
      • S(h);OGATE,P_PINQ(L),XS(M)::QAR1(L)
      • R(d);SBLOCK::R(K),XP(i)
      • S(h);N_SPINB(a),OGATE,P_PINQ(L)::QAR1(L)
      • S(h);N_PINP(D),P_PINQ(L)::P(D)
      • S(h);OGATE,P_PINQ(L)::QAR1(L)
      • S(h);N_PINP(D),OGATE,P_PINQ(L)::QAR1(L)
      • P(i);N_GUARD::QAB1(L),XS(h)
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