MESON Chess Problem Database

Problem Display
PID: 205537 (8/8/8/8/6p1/6Kp/7R/2N3k1 w - - 0 1)

Schonberger, Tibor

L'Echiquier Marseillais, 1925

8/8/8/8/6p1/6Kp/7R/2N3k1

#2

3 + 3

6490 yacpdb 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Rh1#
  • Tries
    • 1.Re2?
      • threat
        • 2.Re1#
      • 1...Kh1
        • 2.Re1#
      • 1...Kf1!
    • 1.Rf2?
      • 1...Kh1
        • 2.Rf1#
      • 1...h2!
    • 1.Rxh3?
      • 1...Kf1
        • 2.Rh1#
      • 1...gxh3!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Rd1#
      • 1...Kf1
        • 2.Rd1#
      • 1...Kh1
        • 2.Rd1#

This anticipates 242001(1933)

FEATURES

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