MESON Chess Problem Database

Problem Display
PID: 209 (1K2br2/2BpRn2/5R2/4P3/4k3/b1P2N2/QnPP4/8 w - - 0 1)

Mansfield, Comins

Manchester Guardian, 1950

1K2br2/2BpRn2/5R2/4P3/4k3/b1P2N2/QnPP4/8

#2

10 + 7

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qa8#
    • 1...Sd1
      • 2.Qc4#
    • 1...Sd3
      • 2.Qc4#
    • 1...Sa4
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sxe5
      • 2.Sg5#
      • 2.Rxe5#
    • 1...Sg5
      • 2.Sxg5#
    • 1...Sd6
      • 2.Sg5#
      • 2.exd6#
    • 1...Sh6
      • 2.Sg5#
    • 1...Sd8
      • 2.Sg5#
    • 1...Sh8
      • 2.Sg5#
  • Tries
    • 1.Rexf7?
      • threat
        • 2.Sg5#
        • 2.Rf4#
      • 1...Rxf7
        • 2.Sg5#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Rg8
        • 2.Rf4#
      • 1...Bd6
        • 2.Rf4#
        • 2.Qa8#
      • 1...Sd3
        • 2.Sg5#
        • 2.Qc4#
      • 1...d6
        • 2.Rf4#
      • 1...Bxf7+!
  • Keys
    • 1.e6!
      • threat
        • 2.Rf4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Bd6
        • 2.Qa8#
      • 1...Sd3
        • 2.Qc4#
      • 1...Se5
        • 2.Sg5#
      • 1...Sg5
        • 2.Sxg5#
      • 1...Sd6
        • 2.exd7#
      • 1...Sh6
        • 2.Sg5#
      • 1...Sd8
        • 2.Sg5#
      • 1...Sh8
        • 2.Sg5#
      • 1...d6
        • 2.exf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(b);OGATE,P_PINB(H)::QAB(A)
    • S(a);N_GUARD::QAR2(A)
    • S(a);N_GUARD::QAR2(A),XS(a)
    • S(e);N_GUARD::S(E),XS(e)
    • S(e);N_GUARD::S(E)
  • Tries
    • Try
      • R(I);XS(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XR(I)::S(E)
        • S(a);N_GUARD::QAR2(A),XS(a)
        • R(g);::R1(G)
        • P(d);::R1(G)
      • Refutation
        • B(f);CHECK,XR(I)
  • Actual
    • P(F);
    • Threat
      • R1(G)
    • Vars
      • S(a);N_GUARD::QAR2(A),XS(a)
      • B(b);OGATE,P_PINB(H)::QAB(A)
      • S(a);N_GUARD::QAR2(A)
      • S(e);N_GUARD::S(E)
      • S(e);N_GUARD::S(E),XS(e)
      • S(e);N_GUARD,S_CUTB(b)::R(I)+P(F),XP(d)
      • P(d);S_CUTB(b)::R(I)+P(F),XS(e)
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