MESON Chess Problem Database

Problem Display
PID: 164826 (8/1N2q3/1n1p4/K1p2Qp1/1pkN2p1/bp1n2R1/p3r3/B2R1B2 w - - 0 1)

Petrovic, Nenad

Israel Problemists' Association, 1950

8/1N2q3/1n1p4/K1p2Qp1/1pkN2p1/bp1n2R1/p3r3/B2R1B2

#2

8 + 13

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Sxd6#
    • 1...Qe4
      • 2.Sxd6#
    • 1...Qf7
      • 2.Sxd6#
    • 1...Qg7
      • 2.Sxd6#
    • 1...Qh7
      • 2.Sxd6#
    • 1...Qe8
      • 2.Sxd6#
    • 1...Re1
      • 2.Bxd3#
    • 1...Rc2
      • 2.Bxd3#
    • 1...Rf2
      • 2.Bxd3#
    • 1...Rg2
      • 2.Bxd3#
    • 1...Rh2
      • 2.Bxd3#
    • 1...Re4
      • 2.Bxd3#
    • 1...Re6
      • 2.Bxd3#
    • 1...Sd5
      • 2.Qxd3#
    • 1...cxd4
      • 2.Qb5#
    • 1...d5
      • 2.Qxd3#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qxd3#
      • 1...Sb2
        • 2.Rc1#
      • 1...Qe3
        • 2.Sxd6#
      • 1...Qe4
        • 2.Sxd6#
      • 1...Qh7
        • 2.Sxd6#
      • 1...Rd2
        • 2.Sxd2#
      • 1...Re3
        • 2.Sd2#
      • 1...Re4
        • 2.Sd2#
        • 2.Bxd3#
      • 1...Sc1
        • 2.Sd2#
      • 1...Se1
        • 2.Sd2#
      • 1...Sf2
        • 2.Sd2#
      • 1...Sf4
        • 2.Sd2#
      • 1...Se5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 13
  • Sets
    • Q(m);N_GUARD::S(H),XP(l)
    • R(b);OGATE,P_SPINS(e)::B(C),XS(e)
    • S(k);SBLOCK::QAB1(G),XS(e)
    • P(i);OGATE,XS(E)::QAB1(G)
    • P(l);SBLOCK::QAB1(G),XS(e)
  • Actual
    • S(E);
    • Threat
      • QAB1(G),XS(e)
    • Vars
      • S(e);N_GUARD,P_SPINR(b),S_CUTB(c)::R(B)
      • Q(m);N_GUARD::S(H),XP(l)
      • R(b);N_GUARD,P_SPINS(e)::S(E),XR(b)
      • R(b);N_GUARD,P_SPINS(e)::S(E)
      • S(e);P_SPINR(b)::S(E)
      • S(e);P_SPINR(b),S_CUTQ(m)::QAR2(G)
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