MESON Chess Problem Database

Problem Display
PID: 120067 (8/8/3k4/8/8/6p1/2Q1R3/4K2R w K - 0 1)

Coultaus, Joseph A

St. John Globe, 1904

8/8/3k4/8/8/6p1/2Q1R3/4K2R

#2

4 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rh4?
      • threat
        • 2.Rd4#
      • 1...Kd7
        • 2.Rd4#
      • 1...Kd5!
    • 1.Rh5?
      • 1...Kd7
        • 2.Rd5#
      • 1...g2!
    • 1.Rh7?
      • 1...Kd5
        • 2.Rd7#
      • 1...g2!
    • 1.Rh8?
      • threat
        • 2.Rd8#
      • 1...Kd5
        • 2.Rd8#
      • 1...Kd7!
  • Keys
    • 1.0-0!
      • threat
        • 2.Rd1#
      • 1...Kd5
        • 2.Rd1#
      • 1...Kd7
        • 2.Rd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • P(a);
    • Try
      • R(B);
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • P(a);
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • K(A);0-0
    • Threat
      • R(B)
    • Vars
      • K(b);P-FLIGHT::R(B)
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