MESON Chess Problem Database

Problem Display
PID: 184015 (b6B/8/2p5/1R5K/1NkN3Q/5P2/P2R4/1r2n3 w - - 0 1)

Sparke, Arthur M

2nd Prize, Hampshire Telegraph and Post, 1914

b6B/8/2p5/1R5K/1NkN3Q/5P2/P2R4/1r2n3

#2

9 + 5

15 British Chess Magazine 1915

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Sb3#
    • 1...Sc2
      • 2.Rxc2#
    • 1...Sg2
      • 2.Rc2#
    • 1...Sd3
      • 2.Rc2#
    • 1...Sxf3
      • 2.Rc2#
  • Tries
    • 1.Rb6?
      • threat
        • 2.Sb3#
        • 2.Se6#
      • 1...Kc3
        • 2.Sb3#
      • 1...Sxf3
        • 2.Rc2#
      • 1...Sg2
        • 2.Rc2#
      • 1...Rb3
        • 2.Sxb3#
        • 2.Se6#
      • 1...Sc2
        • 2.Rxc2#
      • 1...Sd3
        • 2.Rc2#
      • 1...c5
        • 2.Sdc6#
      • 1...Kc5!
    • 1.Rb7?
      • threat
        • 2.Sb3#
        • 2.Se6#
      • 1...Kc3
        • 2.Sb3#
      • 1...Kc5
        • 2.Se6#
      • 1...Sxf3
        • 2.Rc2#
      • 1...Sg2
        • 2.Rc2#
      • 1...Rb3
        • 2.Sxb3#
        • 2.Se6#
      • 1...Sc2
        • 2.Rxc2#
      • 1...Sd3
        • 2.Rc2#
      • 1...Bxb7!
    • 1.Rb8?
      • threat
        • 2.Sb3#
        • 2.Se6#
      • 1...Kc3
        • 2.Sb3#
      • 1...Kc5
        • 2.Se6#
      • 1...Sxf3
        • 2.Rc2#
      • 1...Sg2
        • 2.Rc2#
      • 1...Rb3
        • 2.Sxb3#
        • 2.Se6#
      • 1...Sc2
        • 2.Rxc2#
      • 1...Sd3
        • 2.Rc2#
      • 1...c5
        • 2.Sdc6#
      • 1...Bb7!
  • Keys
    • 1.Sa6!
      • threat
        • 2.Rc5#
      • 1...Rxb5+
        • 2.Sf5#
      • 1...Kc3
        • 2.Sb3#
      • 1...cxb5
        • 2.Sc6#
      • 1...c5
        • 2.Rxc5#
      • 1...Sd3
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • K(c);N_GUARD,P-FLIGHT::B(I)+S(E)
    • S(b);N_GUARD::R(B),XS(b)
    • S(b);N_GUARD::R(B)
    • S(b);N_GUARD,XP(C)::R(B)
  • Tries
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::B(I)+S(E)
        • S(b);N_GUARD,XP(C)::R(B)
        • S(b);N_GUARD::R(B)
        • S(b);N_GUARD::R(B),XS(b)
        • P(d);SBLOCK::QAR(F)+S(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::B(I)+S(E)
        • K(c);P-FLIGHT::S(E)
        • S(b);N_GUARD,XP(C)::R(B)
        • S(b);N_GUARD::R(B)
        • S(b);N_GUARD::R(B),XS(b)
      • Refutation
        • B(e);XR(G)
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::B(I)+S(E)
        • K(c);P-FLIGHT::S(E)
        • S(b);N_GUARD,XP(C)::R(B)
        • S(b);N_GUARD::R(B)
        • S(b);N_GUARD::R(B),XS(b)
        • P(d);SBLOCK::QAR(F)+S(E)
      • Refutation
        • B(e);
  • Actual
    • S(D);
    • Threat
      • R1(G)
    • Vars
      • R(a);CHECK,SBLOCK,XR(G)::QAR(F)+S(E)
      • K(c);N_GUARD,P-FLIGHT::B(I)+S(E)
      • P(d);SBLOCK,XR(G)::QAR(F)+S(E)
      • P(d);::R1(G),XP(d)
      • S(b);N_GUARD,SBLOCK::R(B)
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