MESON Chess Problem Database

Problem Display
PID: 39628 (8/5p2/1R3R1B/3B4/3kP3/8/6P1/3K4 w - - 0 1)

Rosberger, Jack

StrateGems, 2001

8/5p2/1R3R1B/3B4/3kP3/8/6P1/3K4

#2

7 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Be3#
  • Tries
    • 1.Kc2?
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5!
    • 1.Kd2?
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5!
    • 1.Bd2?
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5
        • 2.Bc3#
      • 1...Kd3!
    • 1.Be3+?
      • 1...Kc3
        • 2.Rb3#
      • 1...Kd3
        • 2.Rb3#
      • 1...Ke5
        • 2.Rf5#
      • 1...Kxe3!
    • 1.Rb3?
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5!
  • Keys
    • 1.Bg7!
      • 1...Kc3
        • 2.Rf3#
      • 1...Kd3
        • 2.Rf3#
      • 1...Ke3
        • 2.Rf3#
      • 1...Kc5
        • 2.Rfc6#
      • 1...Ke5
        • 2.Rf5#
        • 2.Rxf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(G)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(G);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(E)
        • K(a);P-FLIGHT::R(E)
        • K(a);S_FLIGHT::R1(F)
      • Refutation
        • K(a);S_FLIGHT,XB(G)
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(G);
    • Vars
      • K(a);S_FLIGHT::B(G)+R(F),DCHECK
      • K(a);P-FLIGHT::R(F)
      • K(a);S_FLIGHT::R1(F)
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