MESON Chess Problem Database

Problem Display
PID: 75092 (1b1r4/3R1Q2/2b3Nq/1p1r3p/1Pkp2R1/Pp6/n2PP1K1/5N2 w - - 0 1)

Gamage, Frederick

British Chess Magazine, 1945

1b1r4/3R1Q2/2b3Nq/1p1r3p/1Pkp2R1/Pp6/n2PP1K1/5N2

#2

10 + 11

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Sxe3#
    • 1...Qg7
      • 2.Se3#
    • 1...Qf8
      • 2.Se3#
    • 1...Qxg6
      • 2.Se3#
    • 1...Qh7
      • 2.Se3#
    • 1...Qh8
      • 2.Se3#
    • 1...Be5
      • 2.Sxe5#
    • 1...Ba7
      • 2.Se5#
    • 1...Sc3
      • 2.d3#
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qd3#
      • 1...Qxd2
        • 2.Sxd2#
      • 1...Qxg6
        • 2.Se3#
      • 1...R5xd7
        • 2.Qxc6#
      • 1...Sxb4
        • 2.Qc3#
      • 1...Qe3
        • 2.Sxe3#
      • 1...Rc5
        • 2.Rgxd4#
      • 1...Re5
        • 2.Rgxd4#
      • 1...Rf5
        • 2.Rgxd4#
      • 1...Rg5
        • 2.Se3#
      • 1...Rd6
        • 2.Se5#
      • 1...Sc1
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 7
  • Sets
    • Q(i);N_GUARD::S(A),XQ(i)
    • Q(i);N_GUARD::S(A)
    • Q(i);N_GUARD,P_PINR(G),XS(H)::S(A)
    • B(j);N_GUARD::S(H),XB(j)
    • B(j);N_GUARD::S(H)
    • S(a);SBLOCK::P(B)
  • Actual
    • Q(J);N_PINR(f)
    • Threat
      • QAB1(J)
    • Vars
      • Q(i);P_PINP(C),XP(B)::S(A),XQ(i)
      • Q(i);N_GUARD,P_PINR(G),XS(H)::S(A)
      • R(f);OGATE,P_PINQ(J),XR(I)::QAR2(J),XB(h)
      • S(a);N_GUARD,XP(F)::QAR1(J)
      • Q(i);N_GUARD::S(A),XQ(i)
      • R(f);N_GUARD,P_PINQ(J)::R1(G),XP(d)
      • R(f);P_PINQ(J),P_PINR(G),S_CUTQ(i)::S(A)
      • R(f);N_GUARD,P_PINQ(J),S_CUTB(j)::S(H)
      • S(a);N_GUARD::QAR1(J)
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