MESON Chess Problem Database

Problem Display
PID: 60199 (1n2Q3/2PN3r/1b4n1/N2pP3/3kB2R/r2P1p2/p2B1K2/8 w - - 0 1)

Leigh, Gordon

3rd Highly Comm., Brisbane Courier, 1932

1n2Q3/2PN3r/1b4n1/N2pP3/3kB2R/r2P1p2/p2B1K2/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Sxb3#
    • 1...Rc3
      • 2.Be3#
    • 1...Ra4
      • 2.Sb3#
    • 1...Re7
      • 2.Bxg6#
    • 1...Rg7
      • 2.Bxg6#
    • 1...Sxe5
      • 2.Qxe5#
    • 1...Se7
      • 2.Bxh7#
    • 1...Sf8
      • 2.Bxh7#
    • 1...Sh8
      • 2.Bxh7#
    • 1...Sa6
      • 2.Sc6#
    • 1...Sc6
      • 2.Sxc6#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qb4#
      • 1...Rxe7
        • 2.Bxg6#
      • 1...Bxa5
        • 2.Qc5#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Sxe7
        • 2.Bxh7#
      • 1...Sxd7
        • 2.Sc6#
      • 1...dxe4
        • 2.Qd6#
      • 1...Rb3
        • 2.Sxb3#
      • 1...Rc3
        • 2.Be3#
      • 1...Ra4
        • 2.Sb3#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sa6
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD::S(F),XR(b)
    • R(b);SBLOCK::B(A)
    • R(b);N_GUARD::S(F)
    • R(h);N_GUARD::R(E)+B(D),XS(g)
    • S(g);OGATE,XP(G)::QAB1(J),XS(g)
    • S(g);OGATE::R(E)+B(D),XR(h)
    • S(i);N_GUARD::S(F)
    • S(i);N_GUARD::S(F),XS(i)
  • Actual
    • Q(J);
    • Threat
      • QAR2(J)
    • Vars
      • R(h);N_GUARD,XQ(J)::R(E)+B(D),XS(g)
      • B(f);N_GUARD,XS(F)::QAB1(J)
      • S(g);OGATE,XP(G)::QAB1(J),XS(g)
      • S(g);OGATE,XQ(J)::R(E)+B(D),XR(h)
      • S(i);N_GUARD,XS(I)::S(F)
      • P(e);OGATEB,P_SPINP(e),XB(D)::QAR2(J)
      • R(b);N_GUARD::S(F),XR(b)
      • R(b);SBLOCK::B(A)
      • R(b);N_GUARD::S(F)
      • B(f);N_GUARD::QAB1(J),XB(f)
      • S(i);N_GUARD::S(F)
      • S(i);N_GUARD::S(F),XS(i)
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