MESON Chess Problem Database

Problem Display
PID: 249379 (4k3/3N2R1/3K4/8/8/8/8/8 w - - 0 1)

Kardos, Tivadar

Lokker, Miklosh S

Deutsche Schachzeitung, 1968

4k3/3N2R1/3K4/8/8/8/8/8

#2

3 + 1

6490 yacpdb 2021
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Rg8#
  • Tries
    • 1.Sc5?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8!
    • 1.Se5?
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8!
    • 1.Sb6?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8!
    • 1.Sf6+?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8!
    • 1.Sb8?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8!
    • 1.Rg1?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf7!
    • 1.Rg2?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf7!
    • 1.Rg3?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf7!
    • 1.Rg4?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf7!
    • 1.Rg5?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf7!
    • 1.Rg6?
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf7!
    • 1.Rf7?
      • threat
        • 2.Rf8#
      • 1...Kd8
        • 2.Rf8#
      • 1...Kxf7!
  • Keys
    • 1.Rh7!
      • 1...Kd8
        • 2.Rh8#

Anticipated by 227780(1926)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(C)
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Threat
        • R(C)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
  • Actual
    • R(C);
    • Vars
      • K(a);P-FLIGHT::R(C)
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