MESON Chess Problem Database

Problem Display
PID: 197925 (6K1/8/2pN4/5P2/3k4/8/1PR1RP2/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

Stella Polaris, 1966

6K1/8/2pN4/5P2/3k4/8/1PR1RP2/8

#2

7 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Rcd2#
      • 2.Red2#
    • 1...c5
      • 2.Rcd2#
  • Tries
    • 1.Kf7?
      • 1...Kd3
        • 2.Rcd2#
        • 2.Red2#
      • 1...c5
        • 2.Rcd2#
      • 1...Kd5!
    • 1.Kg7?
      • 1...Kd3
        • 2.Rcd2#
        • 2.Red2#
      • 1...c5
        • 2.Rcd2#
      • 1...Kd5!
    • 1.Kh7?
      • 1...Kd3
        • 2.Rcd2#
        • 2.Red2#
      • 1...c5
        • 2.Rcd2#
      • 1...Kd5!
    • 1.Kf8?
      • 1...Kd3
        • 2.Rcd2#
        • 2.Red2#
      • 1...c5
        • 2.Rcd2#
      • 1...Kd5!
    • 1.Kh8?
      • 1...Kd3
        • 2.Rcd2#
        • 2.Red2#
      • 1...c5
        • 2.Rcd2#
      • 1...Kd5!
    • 1.Re3?
      • 1...c5
        • 2.Rd2#
      • 1...Kd5!
    • 1.b4?
      • 1...Kd3
        • 2.Red2#
      • 1...Kd5
        • 2.Rcd2#
      • 1...c5!
    • 1.f3?
      • 1...Kd3
        • 2.Rcd2#
      • 1...c5
        • 2.Rcd2#
      • 1...Kd5!
    • 1.f6?
      • 1...Kd3
        • 2.Rcd2#
        • 2.Red2#
      • 1...c5
        • 2.Rcd2#
      • 1...Kd5!
  • Keys
    • 1.f4!
      • 1...Kd3
        • 2.Rcd2#
      • 1...Kd5
        • 2.Red2#
      • 1...c5
        • 2.Rcd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::R(B)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(G);P-FLIGHT
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(G);S_FLIGHT
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(G);P-FLIGHT
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(G);P-FLIGHT
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(A);
      • Vars
        • K(a);P-FLIGHT::R1(C)
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • P(D);
      • Vars
        • K(a);P-FLIGHT::R1(B)
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(E);
      • Vars
        • P(b);SBLOCK::R(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(D);
    • Vars
      • K(a);P-FLIGHT::R1(B)
      • K(a);P-FLIGHT::R(C)
      • P(b);SBLOCK::R(B)
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