MESON Chess Problem Database

Problem Display
PID: 167278 (3K2b1/8/3R4/1N1pk1Nn/4B3/8/1R3p2/B1Qr1rn1 w - - 0 1)

Smith, William James

1st Sp. Prize, Sydney Morning Herald, 1904

3K2b1/8/3R4/1N1pk1Nn/4B3/8/1R3p2/B1Qr1rn1

#2

8 + 8

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Rxe6#
    • 1...Bh7
      • 2.Re6#
  • Tries
    • 1.Rb1+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...d4!
    • 1.Ra2+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...d4!
    • 1.Rc2+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...d4!
    • 1.Re2+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...d4!
    • 1.Rxf2+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...d4!
    • 1.Rb3+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...d4!
    • 1.Rb4+?
      • 1...Rd4
        • 2.Bxd4#
      • 1...d4!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Rf5#
      • 1...dxe4+
        • 2.Rd2#
      • 1...Kxf6
        • 2.Rxf2#
      • 1...Sxf6
        • 2.Qc7#
      • 1...Be6
        • 2.Rxe6#
      • 1...Bh7
        • 2.Re6#
      • 1...Sg3
        • 2.Qf4#
      • 1...Sg7
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(h);N_GUARD::R1(G),XB(h)
    • B(h);N_GUARD::R1(G)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(C);CHECK,XP(d)
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::B(A),XR(a)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • P(e);CHECK,N_GUARD,XB(D)::B(A)+R(C)
      • K(f);S_FLIGHT,XR(G)::B(A)+R(C),DCHECK,XP(d)
      • S(g);SBLOCK,XR(G)::QAB(B)
      • B(h);N_GUARD::R1(G),XB(h)
      • B(h);N_GUARD::R1(G)
      • S(g);N_GUARD::QAB1(B)
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