MESON Chess Problem Database

Problem Display
PID: 227927 (4R3/8/4nQ1b/3B4/4P1p1/4k1p1/2R3P1/K7 w - - 0 1)

Lamba, Stelian

Deutsche Schachzeitung, 1964

4R3/8/4nQ1b/3B4/4P1p1/4k1p1/2R3P1/K7

#2

7 + 5

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qc3#
    • 1...Bf4
      • 2.Qc3#
  • Tries
    • 1.Qf3+?
      • 1...Kd4
        • 2.Qc3#
      • 1...gxf3!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Re2#
      • 1...Kxe4
        • 2.Rxe6#
      • 1...Sd4
        • 2.Qxh6#
      • 1...Sf4
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(a);P-FLIGHT::QAR1(F)
    • B(e);SBLOCK::QAR2(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(F)
      • Refutation
        • P(c);XQ(F)
  • Actual
    • B(E);
    • Threat
      • R1(B)
    • Vars
      • K(a);OGATEB,P-FLIGHT,P_SPINS(d),XP(D)::R(G),XS(d)
      • S(d);N_GUARD,SBLOCK::QAB(F),XB(e)
      • S(d);OGATE,SBLOCK::QAB(F)
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