MESON Chess Problem Database

Problem Display
PID: 264452 (n1RK4/4p3/7R/1rNk4/3Pp3/1N6/6nB/5B2 w - - 0 1)

Brogi, Giuseppe

Il Problema - Terminologia e temi, 1959

n1RK4/4p3/7R/1rNk4/3Pp3/1N6/6nB/5B2

#2

8 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Rxc5#
  • Tries
    • 1.Kxe7?
      • threat
        • 2.Rh5#
        • 2.Rd6#
        • 2.Rd8#
      • 1...Rxb3
        • 2.Rd6#
        • 2.Rd8#
      • 1...Rb6
        • 2.Rh5#
      • 1...Rb8
        • 2.Rh5#
        • 2.Rd6#
      • 1...Se3
        • 2.Rd6#
        • 2.Rd8#
      • 1...Sf4
        • 2.Rd6#
        • 2.Rd8#
      • 1...Sh4
        • 2.Rd6#
        • 2.Rd8#
      • 1...Sb6
        • 2.Rh5#
        • 2.Rd6#
      • 1...Sc7
        • 2.Rd6#
        • 2.Rd8#
      • 1...Rb7+!
    • 1.Sa4?
      • threat
        • 2.Sc3#
        • 2.Bc4#
      • 1...e3
        • 2.Sc3#
        • 2.Bxg2#
      • 1...Rb4
        • 2.Sc3#
        • 2.Rc5#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Se3
        • 2.Sc3#
      • 1...Sb6
        • 2.Sc3#
      • 1...Sc7
        • 2.Sc3#
      • 1...Rxb3!
  • Keys
    • 1.Se6!
      • threat
        • 2.Bc4#
      • 1...Sf4
        • 2.Sxf4#
      • 1...Sc7
        • 2.Sxc7#
      • 1...e3
        • 2.Bxg2#
      • 1...Rb4
        • 2.Rc5#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Se3
        • 2.Sf4#
      • 1...Sb6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,XS(E)::R1(G),XR(c)
  • Tries
    • Try
      • K(H);S_FLIGHT,XP(e)
      • Threat
        • DUALS(3)
      • Vars
        • R(c);::R(F)
      • Refutation
        • R(c);CHECK
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);N_GUARD::R1(G),XR(c)
        • S(a);::S(E)
        • S(f);::S(E)
      • Refutation
        • R(c);XS(C)
  • Actual
    • S(E);
    • Threat
      • B(A)
    • Vars
      • S(a);N_GUARD::S(E),XS(a)
      • S(f);N_GUARD::S(E),XS(f)
      • P(b);OGATEB::B(A),XS(a)
      • R(c);N_GUARD::R1(G)
      • R(c);N_GUARD::R1(G),XR(c)
      • S(a);N_GUARD::S(E)
      • S(f);N_GUARD::S(E)
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