MESON Chess Problem Database

Problem Display
PID: 101273 (1R6/2B1n1K1/5R2/2k2PQ1/5N2/nPP4p/4p3/5b1r w - - 0 1)

Wainwright, Joseph CJ

3rd HM., Good Companions (November Pageant Ty.), 1916

1R6/2B1n1K1/5R2/2k2PQ1/5N2/nPP4p/4p3/5b1r

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qxg1#
    • 1...Sc4
      • 2.b4#
    • 1...Sb5
      • 2.Bb6#
    • 1...Sd5
      • 2.Sd3#
    • 1...Sxf5+
      • 2.Qxf5#
    • 1...Sc6
      • 2.Bd6#
    • 1...Sg6
      • 2.fxg6#
  • Tries
    • 1.Rb5+?
      • 1...Sxb5
        • 2.Bb6#
      • 1...Kxb5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qxe7#
      • 1...Sxf5+
        • 2.Qxf5#
      • 1...Rg1
        • 2.Qxg1#
      • 1...Sc4
        • 2.b4#
      • 1...Sb5
        • 2.Bb6#
      • 1...Sd5
        • 2.Sd3#
      • 1...Sc6
        • 2.Bd6#
      • 1...Sg6
        • 2.fxg6#
      • 1...Sc8
        • 2.f6#
      • 1...Sg8
        • 2.f6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,P_PINQ(E)::QAB(E),XR(b)
    • S(d);SBLOCK::P(A)
    • S(d);SBLOCK::B(G)
    • S(g);SBLOCK::S(C)
    • S(g);CHECK,OGATE,P_SPINS(g),XP(D)::QAR(E),XS(g)
    • S(g);SBLOCK::B(G)
    • S(g);OGATE::QAR(E)+P(D),XS(g)
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • S(d);SBLOCK,XR(I)::B(G)
      • Refutation
        • K(f);P-FLIGHT,XR(I)
  • Actual
    • R(F);
    • Threat
      • QAB(E),XS(g)
    • Vars
      • S(g);CHECK,OGATE,P_SPINS(g),XP(D)::QAR(E),XS(g)
      • R(b);N_GUARD,P_PINQ(E)::QAB(E),XR(b)
      • S(d);SBLOCK::P(A)
      • S(d);SBLOCK::B(G)
      • S(g);SBLOCK::S(C)
      • S(g);SBLOCK::B(G)
      • S(g);OGATE::QAR(E)+P(D),XS(g)
      • S(g);N_GUARD::QAR(E)+P(D)
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