MESON Chess Problem Database

Problem Display
PID: 55936 (8/2p4r/1Rp5/1N2B1p1/1pkPPpN1/7r/P1BP3b/1K2n3 w - - 0 1)

Williams, JD

2nd HM., Brisbane Courier, 1914-1915

8/2p4r/1Rp5/1N2B1p1/1pkPPpN1/7r/P1BP3b/1K2n3

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3+
      • 2.axb3#
    • 1...Sd3
      • 2.Bb3#
    • 1...Sf3
      • 2.d3#
    • 1...b3
      • 2.Sa3#
    • 1...f3
      • 2.Se3#
    • 1...cxb5
      • 2.Rc6#
    • 1...cxb6
      • 2.Sd6#
  • Tries
    • 1.Bf6?
      • threat
        • 2.Se5#
      • 1...Rb3+
        • 2.axb3#
      • 1...cxb5
        • 2.Rc6#
      • 1...cxb6
        • 2.Sd6#
      • 1...b3
        • 2.Sa3#
      • 1...Sd3
        • 2.Bb3#
      • 1...Sf3
        • 2.d3#
      • 1...f3
        • 2.Se3#
      • 1...Re7!
    • 1.Bh8?
      • threat
        • 2.Se5#
      • 1...Rb3+
        • 2.axb3#
      • 1...cxb5
        • 2.Rc6#
      • 1...cxb6
        • 2.Sd6#
      • 1...b3
        • 2.Sa3#
      • 1...Sd3
        • 2.Bb3#
      • 1...Sf3
        • 2.d3#
      • 1...f3
        • 2.Se3#
      • 1...Re7!
    • 1.d3+?
      • 1...Sxd3
        • 2.Bb3#
      • 1...Rxd3!
  • Keys
    • 1.Bg7!
      • threat
        • 2.Se5#
      • 1...Rb3+
        • 2.axb3#
      • 1...cxb5
        • 2.Rc6#
      • 1...cxb6
        • 2.Sd6#
      • 1...b3
        • 2.Sa3#
      • 1...Sd3
        • 2.Bb3#
      • 1...Sf3
        • 2.d3#
      • 1...f3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(c);CHECK,OGATE::P(B),XR(c)
    • S(a);SBLOCK,S_CUTR(c)::B(C)
    • S(a);N_GUARD,S_CUTR(c)::P(D)
    • P(d);N_GUARD,S_CUTR(c)::S(H)
    • P(f);N_GUARD,S_CUTR(c)::S(G)
    • P(h);SBLOCK,XS(H)::R(J)
    • P(i);N_GUARD,XR(J)::S(H)
  • Tries
    • Try
      • B(I);
      • Threat
        • S(G)
      • Vars
        • R(c);CHECK,OGATE::P(B),XR(c)
        • P(h);SBLOCK,XS(H)::R(J)
        • P(i);N_GUARD,XR(J)::S(H)
        • P(d);N_GUARD,S_CUTR(c)::S(H)
        • S(a);SBLOCK,S_CUTR(c)::B(C)
        • S(a);N_GUARD,S_CUTR(c)::P(D)
        • P(f);N_GUARD,S_CUTR(c)::S(G)
      • Refutation
        • R(j);
    • Try
      • B(I);
      • Threat
        • S(G)
      • Vars
        • R(c);CHECK,OGATE::P(B),XR(c)
        • P(h);SBLOCK,XS(H)::R(J)
        • P(i);N_GUARD,XR(J)::S(H)
        • P(d);N_GUARD,S_CUTR(c)::S(H)
        • S(a);SBLOCK,S_CUTR(c)::B(C)
        • S(a);N_GUARD,S_CUTR(c)::P(D)
        • P(f);N_GUARD,S_CUTR(c)::S(G)
      • Refutation
        • R(j);
    • Try
      • P(D);CHECK
      • Vars
        • S(a);SBLOCK,XP(D)::B(C)
      • Refutation
        • R(c);XP(D)
  • Actual
    • B(I);
    • Threat
      • S(G)
    • Vars
      • R(c);CHECK,OGATE::P(B),XR(c)
      • P(h);SBLOCK,XS(H)::R(J)
      • P(i);N_GUARD,XR(J)::S(H)
      • P(d);N_GUARD,S_CUTR(c)::S(H)
      • S(a);SBLOCK,S_CUTR(c)::B(C)
      • S(a);N_GUARD,S_CUTR(c)::P(D)
      • P(f);N_GUARD,S_CUTR(c)::S(G)
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