MESON Chess Problem Database

Problem Display
PID: 139020 (2R5/5R2/r2kpK2/3P4/n3p3/4N3/3P2B1/8 w - - 0 1)

Dowd, Steven B

L'Italia Scacchistica, 2006

2R5/5R2/r2kpK2/3P4/n3p3/4N3/3P2B1/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Rc6#
    • 1...Rc6
      • 2.Rxc6#
    • 1...Ra7
      • 2.Rc6#
    • 1...Ra8
      • 2.Rc6#
    • 1...Sb6
      • 2.Rc6#
    • 1...exd5
      • 2.Sf5#
  • Tries
    • 1.Bxe4?
      • threat
        • 2.Sc4#
      • 1...exd5
        • 2.Sf5#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Sb6
        • 2.Rc6#
      • 1...Sb2!
    • 1.Rcc7?
      • threat
        • 2.Rfd7#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Sb6
        • 2.Rc6#
      • 1...Sc5!
  • Keys
    • 1.d4!
      • threat
        • 2.Rd8#
      • 1...exd5
        • 2.Sf5#
      • 1...exd4 ep
        • 2.Sc4#
      • 1...Ra7
        • 2.Rc6#
      • 1...Ra8
        • 2.Rc6#
      • 1...Sc5
        • 2.dxc5#
      • 1...Sb6
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::R1(G)
    • R(c);N_GUARD::R1(G),XR(c)
    • S(a);S_CUTR(c)::R1(G)
    • P(e);N_GUARD,SBLOCK,XP(D)::S(C)
  • Tries
    • Try
      • B(B);XP(b)
      • Threat
        • S(C)
      • Vars
        • P(e);N_GUARD,XP(D)::S(C)
        • R(c);N_GUARD::R1(G),XR(c)
        • S(a);S_CUTR(c)::R1(G)
      • Refutation
        • S(a);
    • Try
      • R(G);
      • Threat
        • R1(F)
      • Vars
        • R(c);N_GUARD::R1(G),XR(c)
        • S(a);S_CUTR(c)::R1(G)
      • Refutation
        • S(a);
  • Actual
    • P(A);
    • Threat
      • R(G)
    • Vars
      • P(e);N_GUARD,SBLOCK,XP(D)::S(C)
      • P(b);EP,XP(A)::S(C)
      • R(c);N_GUARD::R1(G)
      • S(a);OGATE::P(A),XS(a)
      • S(a);S_CUTR(c)::R1(G)
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