MESON Chess Problem Database

Problem Display
PID: 214062 (8/8/8/8/3N1K2/6R1/1BBkp3/8 w - - 0 1)

Riczu, Lajos

Land og Folk, 1974

8/8/8/8/3N1K2/6R1/1BBkp3/8

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...e1Q
      • 2.Rd3#
    • 1...e1B
      • 2.Rd3#
    • 1...e1R
      • 2.Rd3#
  • Tries
    • 1.Re3?
      • threat
        • 2.Rxe2#
      • 1...e1Q
        • 2.Rd3#
      • 1...e1S
        • 2.Re2#
      • 1...e1B
        • 2.Re2#
        • 2.Rd3#
      • 1...e1R
        • 2.Rd3#
      • 1...Ke1!
  • Keys
    • 1.Rf3!
      • 1...Ke1
        • 2.Bc3#
      • 1...e1Q
        • 2.Rd3#
      • 1...e1S
        • 2.Rf2#
      • 1...e1B
        • 2.Rd3#
      • 1...e1R
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::R1(C)
  • Tries
    • Try
      • R(C);
      • Threat
        • R1(C),XP(b)
      • Vars
        • P(b);SBLOCK::R1(C)
        • P(b);::R1(C)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • P(b);SBLOCK::R1(C)
      • P(b);OGATEB,SBLOCK::R(C)
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