MESON Chess Problem Database

Problem Display
PID: 162089 (3NQ3/1nR2n2/3p4/8/3k1p2/7R/B5p1/KN3b2 w - - 0 1)

Loveiko, Franz Kazimirovic

Zadachi i Etyudi, 1928

3NQ3/1nR2n2/3p4/8/3k1p2/7R/B5p1/KN3b2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Sc6#
  • Tries
    • 1.Rc4+?
      • 1...Kd5
        • 2.Sc3#
        • 2.Qe4#
        • 2.Qe6#
      • 1...Bxc4!
    • 1.Qe2?
      • threat
        • 2.Se6#
        • 2.Rd3#
      • 1...Sbxd8
        • 2.Rd3#
      • 1...Sfxd8
        • 2.Rd3#
      • 1...Sc5
        • 2.Sc6#
      • 1...Se5
        • 2.Se6#
      • 1...Sg5
        • 2.Rd3#
      • 1...f3
        • 2.Se6#
        • 2.Rh4#
      • 1...Bxe2!
    • 1.Qe6?
      • threat
        • 2.Qd5#
      • 1...Bc4
        • 2.Rxc4#
      • 1...d5
        • 2.Qxd5#
      • 1...f3!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Qe4#
      • 1...Bd3
        • 2.Sf3#
      • 1...Sc5
        • 2.Sc6#
      • 1...Se5
        • 2.Se6#
      • 1...Sg5
        • 2.Qh8#
      • 1...d5
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(f);SBLOCK::S(F)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • B(a);XR(E)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);XS(F)::R1(D)
        • S(g);XS(F)::R1(D)
        • S(f);SBLOCK::S(F)
        • S(g);::S(F)
        • S(g);::R1(D)
      • Refutation
        • B(a);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • B(a);N_GUARD::R1(E),XB(a)
        • P(e);::QAR1(G),XP(e)
      • Refutation
        • P(d);
  • Actual
    • S(B);
    • Threat
      • QAR1(G)
    • Vars
      • B(a);SBLOCK::S(B)
      • S(f);SBLOCK::S(F)
      • S(g);SBLOCK::S(F)
      • S(g);N_GUARD::QAB(G)
      • P(e);SBLOCK::S(B)
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