MESON Chess Problem Database

Problem Display
PID: 4560 (6B1/8/N3p3/4k3/6Q1/8/3R4/3K4 w - - 0 1)

Clark, DW

Shakhmatny Listok, 1879

6B1/8/N3p3/4k3/6Q1/8/3R4/3K4

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987
3713 Snap 2001

SOLUTION

  • SOUND
  • Tries
    • 1.Re2+?
      • 1...Kd6
        • 2.Qxe6#
      • 1...Kf6
        • 2.Rxe6#
      • 1...Kd5!
    • 1.Rf2?
      • 1...Kd6
        • 2.Qxe6#
      • 1...Kd5!
    • 1.Rg2?
      • 1...Kd6
        • 2.Qxe6#
      • 1...Kf6
        • 2.Qxe6#
        • 2.Qg5#
      • 1...Kd5!
  • Keys
    • 1.Rd6!
      • 1...Kxd6
        • 2.Qxe6#
      • 1...Kf6
        • 2.Rxe6#

This anticipates 4872(1892)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(C),XP(b)
        • K(a);OGATE,S_FLIGHT::R1(B),XP(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR1(C),XP(b)
      • K(a);P_SPINP(b),S_FLIGHT::R1(B),XP(b)
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