MESON Chess Problem Database

Problem Display
PID: 198436 (8/3N2p1/R3r3/1rn3R1/4k3/4Pp2/1p1P4/1K3B2 w - - 0 1)

Coufal, Miroslav

Sachova skladba, 1997

8/3N2p1/R3r3/1rn3R1/4k3/4Pp2/1p1P4/1K3B2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Sxc5#
    • 1...Rb4
      • 2.Sxc5#
    • 1...Rbb6
      • 2.Sxc5#
    • 1...Rb7
      • 2.Sxc5#
    • 1...Rb8
      • 2.Sxc5#
    • 1...Re5
      • 2.Rxe5#
    • 1...Rxa6
      • 2.Re5#
    • 1...Reb6
      • 2.Re5#
    • 1...Rc6
      • 2.Re5#
    • 1...Rd6
      • 2.Re5#
    • 1...Rf6
      • 2.Re5#
    • 1...Rg6
      • 2.Re5#
    • 1...Rh6
      • 2.Re5#
  • Tries
    • 1.Rg4+?
      • 1...Kd5
        • 2.Bc4#
        • 2.Rd4#
      • 1...Kf5!
    • 1.Ra4+?
      • 1...Rb4
        • 2.Sxc5#
        • 2.Rxb4#
      • 1...Sxa4!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Rd4#
      • 1...Rxd6
        • 2.Re5#
      • 1...f2
        • 2.Bg2#
      • 1...Rb4
        • 2.Sxc5#
      • 1...Sb3
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • R(d);N_GUARD::S(G),XS(e)
    • R(f);N_GUARD::R1(E),XR(f)
    • R(f);N_GUARD,XR(F)::R1(E)
    • R(f);N_GUARD::R1(E)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);CHECK
      • Refutation
        • S(e);XR(F)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • R(f);N_GUARD,XR(F)::R1(E)
      • P(b);OGATEB::B(B)
      • R(d);N_GUARD::S(G),XS(e)
      • S(e);N_GUARD::B(B)
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