MESON Chess Problem Database

Problem Display
PID: 50907 (4n3/1p3BP1/pR6/P1k1P2Q/3p4/1pr5/1P3P2/4BK2 w - - 0 1)

Stubbs, Arthur Goodwin

Chess Amateur (The), 1908

4n3/1p3BP1/pR6/P1k1P2Q/3p4/1pr5/1P3P2/4BK2

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Bb4#
    • 1...Rd3
      • 2.Bb4#
    • 1...Re3
      • 2.Bb4#
    • 1...Rf3
      • 2.Bb4#
    • 1...Rg3
      • 2.Bb4#
    • 1...Rh3
      • 2.Bb4#
    • 1...Rc4
      • 2.e6#
    • 1...Sd6
      • 2.exd6#
    • 1...Sf6
      • 2.exf6#
  • Keys
    • 1.Qg5!
      • 1...Sxg7
        • 2.Qe7#
      • 1...d3
        • 2.Qe3#
      • 1...Rc1
        • 2.Qxc1#
      • 1...Rc2
        • 2.Bb4#
      • 1...Rd3
        • 2.Bb4#
      • 1...Re3
        • 2.Bb4#
      • 1...Rf3
        • 2.Bb4#
      • 1...Rg3
        • 2.Bb4#
      • 1...Rh3
        • 2.Bb4#
      • 1...Rc4
        • 2.e6#
      • 1...Sd6
        • 2.exd6#
      • 1...Sf6
        • 2.exf6#
      • 1...Sc7
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE::B(A)
    • R(b);OGATE,P_PINP(D)::B(A)
    • R(b);SBLOCK::QAR(G)+P(F)
    • S(g);OGATE::QAR(G)+P(F),XS(g)
  • Actual
    • Q(G);
    • Vars
      • S(g);N_GUARD,XP(J)::QAB(G)
      • P(c);OGATEB::QAB(G)
      • R(b);OGATEB,P_PINB(A)::QAR(G),XR(b)
      • R(b);OGATE::B(A)
      • R(b);OGATE,P_PINP(D)::B(A)
      • R(b);SBLOCK::QAR(G)+P(F)
      • S(g);OGATE::QAR(G)+P(F),XS(g)
      • S(g);N_GUARD::QAB(G)
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Developed and maintained by Brian Stephenson.
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