MESON Chess Problem Database

Problem Display
PID: 62050 (8/4p3/1n2r2b/2p2Pp1/4k1K1/Q3pN2/B1P5/2n5 w - - 0 1)

Firth, J

British Chess Magazine, 1887

8/4p3/1n2r2b/2p2Pp1/4k1K1/Q3pN2/B1P5/2n5

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa2
      • 2.Qd3#
    • 1...Se2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
      • 2.cxd3#
  • Keys
    • 1.Qc3!
      • 1...Sxa2
        • 2.Qd3#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...c4
        • 2.Qd4#
      • 1...Re5
        • 2.Qxe5#
      • 1...Rc6
        • 2.Qe5#
      • 1...Rd6
        • 2.Qe5#
      • 1...Rf6
        • 2.Qe5#
      • 1...Rg6
        • 2.Qe5#
      • 1...Bg7
        • 2.Sxg5#
      • 1...Bf8
        • 2.Sxg5#
      • 1...Se2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
        • 2.cxd3#
      • 1...Sa4
        • 2.Qc4#
      • 1...Sd5
        • 2.Qc4#
      • 1...Sd7
        • 2.Qc4#
      • 1...Sa8
        • 2.Qc4#
      • 1...Sc8
        • 2.Qc4#
      • 1...e2
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XB(A)::QAB1(C)
    • S(a);N_GUARD::QAB1(C)
  • Actual
    • Q(C);
    • Vars
      • S(a);N_GUARD,XB(A)::QAB1(C)
      • S(a);N_GUARD::QAB1(C)
      • S(f);N_GUARD::QAR2(C),XS(f)
      • P(d);N_GUARD::QAR1(C)
      • R(g);N_GUARD::QAR1(C),XR(g)
      • R(g);N_GUARD::QAR1(C)
      • B(h);N_GUARD::S(D),XP(e)
      • S(f);N_GUARD::QAR2(C)
      • P(b);N_GUARD::S(D)
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