MESON Chess Problem Database

Problem Display
PID: 238784 (1r6/q2PQ1n1/2P2P1B/P2p4/N2kN3/3PR3/2p3R1/3b2nK w - - 0 1)

Janevski, Zivko

Mat Plus, 2007

1r6/q2PQ1n1/2P2P1B/P2p4/N2kN3/3PR3/2p3R1/3b2nK

#2

12 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...dxe4
      • 2.Qd6#
      • 2.Qxe4#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qe5#
      • 1...Qc7
        • 2.Qc5#
      • 1...Re8
        • 2.Sb3#
        • 2.Qb4#
      • 1...Sf3
        • 2.Rg4#
      • 1...Se6!
    • 1.Sf2?
      • threat
        • 2.Qe5#
      • 1...Qc7
        • 2.Qc5#
      • 1...Re8
        • 2.Qb4#
      • 1...Sf3
        • 2.Rg4#
      • 1...Se6!
    • 1.Sec3?
      • threat
        • 2.Qe5#
      • 1...Qc7
        • 2.Qc5#
      • 1...Re8
        • 2.Sb5#
        • 2.Qb4#
      • 1...Sf3
        • 2.Rg4#
      • 1...Se6!
    • 1.Sg3?
      • threat
        • 2.Qe5#
      • 1...Se6
        • 2.Sf5#
      • 1...Qc7
        • 2.Qc5#
      • 1...Re8
        • 2.Qb4#
      • 1...Sf3!
    • 1.Sec5?
      • threat
        • 2.Qe5#
      • 1...Se6
        • 2.Sxe6#
      • 1...Re8
        • 2.Sb3#
      • 1...Sf3
        • 2.Rg4#
      • 1...Qc7!
    • 1.Sg5?
      • threat
        • 2.Qe5#
      • 1...Se6
        • 2.Sxe6#
      • 1...Qc7
        • 2.Qc5#
      • 1...Sf3
        • 2.Rg4#
      • 1...Re8!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qe5#
      • 1...Se6
        • 2.Sf5#
      • 1...Re8
        • 2.Sb5#
      • 1...Sf3
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(L)
      • Vars
        • Q(f);N_GUARD::QAB1(L)
        • S(b);S_CUTB(a)::R(B)
      • Refutation
        • S(g);
    • Try
      • S(F);
      • Threat
        • QAB1(L)
      • Vars
        • Q(f);N_GUARD::QAB1(L)
        • R(h);N_GUARD::QAR2(L)
        • S(b);S_CUTB(a)::R(B)
      • Refutation
        • S(g);
    • Try
      • S(F);
      • Threat
        • QAB1(L)
      • Vars
        • Q(f);N_GUARD::QAB1(L)
        • S(b);S_CUTB(a)::R(B)
      • Refutation
        • S(g);
    • Try
      • S(F);
      • Threat
        • QAB1(L)
      • Vars
        • S(g);N_GUARD::S(F)
        • Q(f);N_GUARD::QAB1(L)
        • R(h);N_GUARD::QAR2(L)
      • Refutation
        • S(b);
    • Try
      • S(F);
      • Threat
        • QAB1(L)
      • Vars
        • S(g);N_GUARD::S(F),XS(g)
        • R(h);N_GUARD::S(F)
        • S(b);S_CUTB(a)::R(B)
      • Refutation
        • Q(f);
    • Try
      • S(F);
      • Threat
        • QAB1(L)
      • Vars
        • S(g);N_GUARD::S(F),XS(g)
        • Q(f);N_GUARD::QAB1(L)
        • S(b);S_CUTB(a)::R(B)
      • Refutation
        • R(h);
  • Actual
    • S(F);
    • Threat
      • QAB1(L)
    • Vars
      • S(g);N_GUARD::S(F)
      • R(h);N_GUARD::S(F)
      • S(b);S_CUTB(a)::R(B)
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