MESON Chess Problem Database

Problem Display
PID: 145959 (b4nKb/2rppp2/1R1nk1pR/3p2P1/4P3/1N2NP2/r3B2B/8 w - - 0 1)

Lipton, Michael

Stratford Express, 1952

(First published on Fri Feb 22 1952)

b4nKb/2rppp2/1R1nk1pR/3p2P1/4P3/1N2NP2/r3B2B/8

#2

10 + 12

14867 BCPS Library 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sxc5#
    • 1...Rc6
      • 2.exd5#
    • 1...Ra7
      • 2.Sc5#
    • 1...Rb7
      • 2.Sc5#
      • 2.exd5#
    • 1...Bc6
      • 2.Sc5#
    • 1...Bd4
      • 2.Sxd4#
    • 1...f5
      • 2.exf5#
    • 1...f6
      • 2.Sd4#
  • Tries
    • 1.Rc6?
      • threat
        • 2.Sc5#
        • 2.exd5#
      • 1...Rxc6
        • 2.exd5#
      • 1...Bxc6
        • 2.Sc5#
      • 1...dxe4
        • 2.Sc5#
        • 2.Bc4#
      • 1...dxc6
        • 2.Sc5#
      • 1...Rc2
        • 2.exd5#
      • 1...Rd2
        • 2.Sc5#
      • 1...Bd4
        • 2.Sxd4#
        • 2.exd5#
      • 1...d4
        • 2.Sc5#
        • 2.Bc4#
      • 1...Ra5!
  • Keys
    • 1.f4!
      • threat
        • 2.f5#
      • 1...Rc6
        • 2.exd5#
      • 1...Bc6
        • 2.Sc5#
      • 1...Bf6
        • 2.Bg4#
      • 1...f5
        • 2.exf5#
      • 1...f6
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD::S(C),XR(f)
    • R(f);N_SPINS(c),S_CUTB(j)::P(F),XP(b)
    • R(f);N_GUARD::S(C)
    • B(j);N_SPINS(c),S_CUTR(f)::S(C)
    • B(l);N_GUARD::S(C),XB(l)
    • P(i);OGATE::P(F),XP(i)
    • P(i);N_SPINP(e),S_CUTB(l)::S(C)
  • Tries
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);N_SPINS(c),XR(H)::P(F),XP(b)
        • B(j);N_SPINS(c),XR(H)::S(C)
        • P(g);N_SPINS(c),XR(H)::S(C)
        • R(a);::P(F),XP(b)
        • R(a);::S(C)
      • Refutation
        • R(a);
  • Actual
    • P(E);
    • Threat
      • P(E)
    • Vars
      • R(f);N_SPINS(c),S_CUTB(j)::P(F),XP(b)
      • B(j);N_SPINS(c),S_CUTR(f)::S(C)
      • B(l);N_SPINP(e),S_CUTP(i)::B(A)
      • P(i);OGATE::P(F),XP(i)
      • P(i);N_SPINP(e),S_CUTB(l)::S(C)
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