MESON Chess Problem Database

Problem Display
PID: 21455 (8/4pKp1/1N1P3P/1Q3n2/3PkB1R/4P2R/1p6/8 w - - 0 1)

Mansfield, Comins

2nd Prize, Densmore MT (Pittsburgh Gazette-Times), 1918-1920

8/4pKp1/1N1P3P/1Q3n2/3PkB1R/4P2R/1p6/8

#2

10 + 5

3360 Simple Two-move Themes 1924
56 The Problemist 1927
887 Mate in Two Moves 1931
4797 A Genius of the Two-mover 1936
3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Bxe3#
    • 1...Sxd4
      • 2.Bh2#
      • 2.Bg5#
    • 1...Sxd6+
      • 2.Bxd6#
    • 1...Sxh6+
      • 2.Bxh6#
    • 1...b1Q
      • 2.Qxb1#
    • 1...b1S
      • 2.Qxb1#
    • 1...b1B
      • 2.Qxb1#
    • 1...b1R
      • 2.Qxb1#
  • Tries
    • 1.Rg4?
      • threat
        • 2.Bh2#
        • 2.Be5#
        • 2.Bg5#
      • 1...Sxd6+
        • 2.Bxd6#
      • 1...Sxh6+
        • 2.Bxh6#
      • 1...Sxe3
        • 2.Bxe3#
      • 1...Sxd4
        • 2.Bh2#
        • 2.Bg5#
      • 1...Sh4
        • 2.Bh2#
        • 2.Bg5#
      • 1...e5
        • 2.Bh2#
        • 2.Bxe5#
        • 2.Bg5#
      • 1...g5
        • 2.Bh2#
        • 2.Be5#
        • 2.Bxg5#
      • 1...Sg3!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qb1#
      • 1...Sxd6+
        • 2.Bxd6#
      • 1...Sxh6+
        • 2.Bxh6#
      • 1...Sxe3
        • 2.Bxe3#
      • 1...Sxd4
        • 2.Bh2#
      • 1...Sg3
        • 2.Bg5#
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#

This is a version of 102886

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(c);OGATE,XP(A)::R(E)+B(D),XS(c)
    • S(c);CHECK,OGATE,XP(H)::R(E)+B(D),XS(c)
    • S(c);CHECK,OGATE,XP(I)::R(E)+B(D),XS(c)
    • P(a);OGATE::QAB(F),XQ(a)
    • P(a);OGATE::QAB(F),XS(a)
    • P(a);OGATE::QAB(F),XB(a)
    • P(a);OGATE::QAB(F),XR(a)
  • Tries
    • Try
      • R(E);
      • Threat
        • DUALS(3)
      • Vars
        • S(c);CHECK,OGATE,XP(H)::R(E)+B(D),XS(c)
        • S(c);CHECK,OGATE,XP(I)::R(E)+B(D),XS(c)
        • S(c);OGATE,XP(A)::R(E)+B(D),XS(c)
      • Refutation
        • S(c);
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • S(c);CHECK,OGATE,XP(H)::R(E)+B(D),XS(c)
      • S(c);CHECK,OGATE,XP(I)::R(E)+B(D),XS(c)
      • S(c);OGATE,XP(A)::R(E)+B(D),XS(c)
      • S(c);N_GUARD,XP(C)::R(E)+B(D)
      • S(c);N_GUARD::R(E)+B(D)
      • P(a);::QAB(F),XQ(a)
      • P(a);::QAB(F),XS(a)
      • P(a);::QAB(F),XB(a)
      • P(a);::QAB(F),XR(a)
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