MESON Chess Problem Database

Problem Display
PID: 266709 (2B5/8/R3N3/R3P1p1/6k1/6Pp/5P1P/5K2 w - - 0 1)

Doronin, R

Zadachi i Etyudi, 2011

2B5/8/R3N3/R3P1p1/6k1/6Pp/5P1P/5K2

#2

9 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sxg5#
    • 1...Kh5
      • 2.Sg7#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Sf4#
        • 2.Sg7#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Sc5+?
      • 1...Kf3
        • 2.Ra3#
        • 2.Rf6#
      • 1...Kh5!
    • 1.Bd7?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Ra1?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Ra2?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Ra3?
      • threat
        • 2.Sf4#
        • 2.Sg7#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Ra4+?
      • 1...Kf3
        • 2.Sxg5#
        • 2.Bb7#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Rb5?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Rc5?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Rb6?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Rc6?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.Rd6?
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kf5!
    • 1.f3+?
      • 1...Kf5
        • 2.Sd4#
        • 2.Sf4#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Sd8#
        • 2.Sf8#
      • 1...Kh5
        • 2.Sg7#
      • 1...Kxf3!
  • Keys
    • 1.Rd5!
      • 1...Kf3
        • 2.Sxg5#
      • 1...Kf5
        • 2.Sc5#
      • 1...Kh5
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
    • K(b);N_GUARD,S_FLIGHT::S(H)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(H);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(I);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(G);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(G);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(G);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(H)
      • Refutation
        • K(b);S_FLIGHT,XP(B)
  • Actual
    • R(E);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::S(H),XP(c)
      • K(b);N_GUARD,S_FLIGHT::B(I)+S(H)
      • K(b);N_GUARD,S_FLIGHT::S(H)
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