MESON Chess Problem Database

Problem Display
PID: 214979 (8/8/1Q6/7K/5k2/6N1/3p4/3R4 w - - 0 1)

Riczu, Lajos

Land og Folk, 1975

8/8/1Q6/7K/5k2/6N1/3p4/3R4

#2

4 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rf1+?
      • 1...Ke5
        • 2.Rf5#
      • 1...Kxg3!
    • 1.Qg1?
      • 1...Kf3
        • 2.Rf1#
      • 1...Ke5!
  • Keys
    • 1.Rxd2!
      • 1...Kf3
        • 2.Qf2#
      • 1...Kxg3
        • 2.Qe3#
      • 1...Ke5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::R1(A)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(D);
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);XP(a)
    • Vars
      • K(b);P-FLIGHT::QAR1(D)
      • K(b);S_FLIGHT,XS(B)::QAR2(D)
      • K(b);S_FLIGHT::QAB1(D)
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