MESON Chess Problem Database

Problem Display
PID: 74461 (bB6/3r1NQ1/P2Pp2r/Kpkn4/1Np2p2/P7/8/b1RR3B w - - 0 1)

Gamage, Frederick

3rd Prize=, 02. Hochberg MT, 1942

bB6/3r1NQ1/P2Pp2r/Kpkn4/1Np2p2/P7/8/b1RR3B

#2

11 + 10

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Bxd6#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bc6
      • 2.Sd3#
    • 1...Sc3
      • 2.Qd4#
      • 2.Qg1#
    • 1...Se3
      • 2.Sd3#
    • 1...Sxb4
      • 2.axb4#
    • 1...Sb6
      • 2.Sd3#
    • 1...Sc7
      • 2.Sd3#
      • 2.Ba7#
    • 1...Se7
      • 2.Sd3#
    • 1...c3
      • 2.Qd4#
  • Tries
    • 1.Ba7+?
      • 1...Sb6
        • 2.Sd3#
        • 2.Bxb6#
      • 1...Rxa7!
    • 1.Qg1+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...Se3!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Se4#
      • 1...Sxb4
        • 2.axb4#
      • 1...c3
        • 2.Qd4#
      • 1...Sc3
        • 2.Qd4#
      • 1...Se3
        • 2.Sd3#
      • 1...Sb6
        • 2.Sd3#
      • 1...Sf6
        • 2.Sxe6#
      • 1...Sc7
        • 2.Ba7#
      • 1...Se7
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(i);OGATE,XP(H)::B(K),XR(i)
    • B(a);N_GUARD::QAB1(J),XB(a)
    • B(j);SBLOCK::S(E)
    • S(f);::S(E)
    • S(f);OGATE,XS(E)::P(D),XS(f)
    • P(b);S_CUTB(a)::QAB1(J)
  • Tries
    • Try
      • B(K);CHECK
      • Refutation
        • R(i);P_PINP(G),XB(K)
    • Try
      • Q(J);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB1(J),XB(a)
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • S(f);OGATE,XS(E)::P(D),XS(f)
      • P(b);S_CUTB(a)::QAB1(J)
      • S(f);N_SPINP(b),S_CUTB(a)::QAB1(J)
      • S(f);::S(E)
      • S(f);S_CUTR(h)::S(I),XP(g)
      • S(f);N_GUARD,S_CUTR(i)::B(K)
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