MESON Chess Problem Database

Problem Display
PID: 55254 (8/1B6/3Pn3/2R1Bk1P/4N1n1/1p1Q1P2/bK3R2/8 w - - 0 1)

Mansfield, Comins

3rd Prize, L'Italia Scacchistica, 1972

8/1B6/3Pn3/2R1Bk1P/4N1n1/1p1Q1P2/bK3R2/8

#2

10 + 5

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Tries
    • 1.Bh2+?
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxc5!
    • 1.Bg3+?
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxc5!
  • Keys
    • 1.f4!
      • threat
        • 2.Sd2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sg5#
        • 2.Sf6#
      • 1...Sxf2
        • 2.Sxf2#
      • 1...Sxe5
        • 2.Qh3#
      • 1...Sxf4
        • 2.Bc8#
      • 1...Sxc5
        • 2.Sxc5#
      • 1...Sh2
        • 2.Sf6#
      • 1...Se3
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sh6
        • 2.Sf6#
      • 1...Sd4
        • 2.Sg5#
      • 1...Sg5
        • 2.Sxg5#
      • 1...Sc7
        • 2.Sg5#
      • 1...Sg7
        • 2.Sg5#
      • 1...Sd8
        • 2.Sg5#
      • 1...Sf8
        • 2.Sg5#
      • 1...Bb1
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::R1(F),XS(c)
      • Refutation
        • S(e);XR(F)
    • Try
      • B(G);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::R1(F),XS(c)
      • Refutation
        • S(e);XR(F)
  • Actual
    • P(D);
    • Threat
      • DUALS(5)
    • Vars
      • S(c);XR(B)::QAB(C)+S(E),XS(c)
      • S(c);OGATEB,P_SPINS(c),XB(G)::QAB(C)
      • S(e);OGATEB,P_SPINS(e),XP(D)::B(J)
      • S(e);XR(F)::QAB(C)+S(E),XS(e)
      • S(c);::QAB(C)+S(E)
      • S(c);::QAB(C)+S(E),XS(c)
      • S(e);::QAB(C)+S(E)
      • S(e);::QAB(C)+S(E),XS(e)
      • B(a);::QAB(C)+S(E),DCHECK
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