MESON Chess Problem Database

Problem Display
PID: 21352 (8/1K6/3p4/2pkp3/1P1N1P2/2P5/4QP2/8 w - - 0 1)

Stubbs, Arthur Goodwin

2nd Prize, Good Companions (May Meredith Ty.), 1918

8/1K6/3p4/2pkp3/1P1N1P2/2P5/4QP2/8

#2

7 + 4

3132 The Good Companion Two-Mover 1922
3360 Simple Two-move Themes 1924
15085 Australian Chess Forum 1996

SOLUTION

  • SOUND
  • Sets
    • 1...exd4
      • 2.c4#
    • 1...exf4
      • 2.Qe6#
  • Keys
    • 1.f3!
      • 1...cxb4
        • 2.Qb5#
      • 1...cxd4
        • 2.Qa2#
      • 1...exd4
        • 2.c4#
      • 1...exf4
        • 2.Qe6#
      • 1...c4
        • 2.Qe4#
      • 1...e4
        • 2.fxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK,XS(E)::P(C)
    • P(c);OGATE,XP(F)::QAB1(A)
  • Actual
    • P(B);
    • Vars
      • P(a);OGATEB,XP(D)::QAR2(A)
      • P(a);N_GUARD,XS(E)::QAB(A)
      • P(c);SBLOCK,XS(E)::P(C)
      • P(c);OGATE,XP(F)::QAB1(A)
      • P(a);SBLOCK::QAB1(A)
      • P(c);OGATE::P(B),XP(c)
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