MESON Chess Problem Database

Problem Display
PID: 227869 (8/6p1/3pR1P1/3k1K2/8/8/8/2Q5 w - - 0 1)

Schonberger, Tibor

Magyar Sakkvilag, 1926

8/6p1/3pR1P1/3k1K2/8/8/8/2Q5

#2

4 + 3

6490 yacpdb 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rxd6#
  • Tries
    • 1.Kf4?
      • 1...Kd4
        • 2.Rxd6#
      • 1...Kxe6!
    • 1.Rf6?
      • 1...Kd4
        • 2.Rxd6#
      • 1...gxf6!
  • Keys
    • 1.Re1!
      • 1...Kd4
        • 2.Rd1#

This anticipates 219466(1991)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(C),XP(b)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(C),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C),XP(b)
      • Refutation
        • P(c);XR(C)
  • Actual
    • R(C);
    • Vars
      • K(a);P-FLIGHT::R(C)
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