MESON Chess Problem Database

Problem Display
PID: 197290 (r3k3/B5Q1/6p1/7b/3p3R/8/8/4K2R w Kq - 0 1)

Letov, K

Zadachi i Etyudi, 1996

r3k3/B5Q1/6p1/7b/3p3R/8/8/4K2R

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Re4#
    • 1...Bd1
      • 2.Rh8#
    • 1...Be2
      • 2.Rh8#
    • 1...Bf3
      • 2.Rh8#
    • 1...Bg4
      • 2.Rh8#
  • Tries
    • 1.Rf1?
      • threat
        • 2.Rf8#
      • 1...Kd8
        • 2.Rf8#
      • 1...Bf3
        • 2.Rh8#
      • 1...0-0-0!
    • 1.Rf4?
      • threat
        • 2.Rf8#
      • 1...Kd8
        • 2.Rf8#
      • 1...0-0-0!
    • 1.Rxh5?
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...0-0-0
        • 2.Rc5#
      • 1...gxh5!
  • Keys
    • 1.0-0!
      • threat
        • 2.Rf8#
      • 1...Kd8
        • 2.Rf8#
      • 1...0-0-0
        • 2.Rc1#
      • 1...Bf3
        • 2.Rh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(d);SBLOCK::R(C)
    • B(b);OGATE::R(C)
  • Tries
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • K(e);P-FLIGHT::R(B)
        • B(b);OGATE::R(C)
      • Refutation
        • K(e);0-0-0
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • K(e);P-FLIGHT::R(C)
      • Refutation
        • K(e);0-0-0
    • Try
      • R(C);XB(b)
      • Threat
        • R(C)
      • Vars
        • K(e);P-FLIGHT::R(C)
        • K(e);0-0-0,OGATEB::R(C)
      • Refutation
        • P(c);XR(C)
  • Actual
    • K(A);0-0
    • Threat
      • R1(B)
    • Vars
      • K(e);P-FLIGHT::R(B)
      • K(e);0-0-0,OGATEB::R(B)
      • B(b);OGATE::R(C)
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