MESON Chess Problem Database

Problem Display
PID: 264437 (b2KN3/p1RPp3/2p5/2pk4/P1Nb2Qn/1PP5/4pBp1/2r1r1q1 w - - 0 1)

Gavrilovski, Zoran

The Problemist, 1992

b2KN3/p1RPp3/2p5/2pk4/P1Nb2Qn/1PP5/4pBp1/2r1r1q1

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Se3#
    • 1...e5
      • 2.Sf6#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Be5
        • 2.Qc4#
      • 1...e5
        • 2.Qg8#
      • 1...c4!
    • 1.Se3+?
      • 1...Ke5
        • 2.Bg3#
      • 1...Bxe3!
    • 1.Sb6+?
      • 1...Ke5
        • 2.Bg3#
      • 1...axb6!
    • 1.Rxa7?
      • threat
        • 2.Sc7#
      • 1...Be5
        • 2.Se3#
        • 2.Sb6#
      • 1...Qh2!
    • 1.Rb7?
      • threat
        • 2.Sc7#
      • 1...Be5
        • 2.Se3#
      • 1...Qh2!
    • 1.Rc8?
      • threat
        • 2.Sc7#
      • 1...Be5
        • 2.Se3#
      • 1...Qh2!
    • 1.Qf5+?
      • 1...Be5
        • 2.Se3#
        • 2.Qxe5#
      • 1...e5
        • 2.Sf6#
      • 1...Sxf5!
  • Keys
    • 1.Rxc6!
      • threat
        • 2.Qe6#
      • 1...Kxc6
        • 2.Qe4#
      • 1...Bxc6
        • 2.Sc7#
      • 1...Be5
        • 2.Rxc5#
      • 1...Sf5
        • 2.Qf3#
      • 1...e5
        • 2.Rd6#
      • 1...e6
        • 2.Rd6#
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD,SBLOCK::S(E)
    • P(l);N_GUARD,S_CUTB(f)::S(J)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(F)
      • Vars
        • K(i);P-FLIGHT::QAR1(F)
        • B(f);OGATE,SBLOCK::QAB1(F)
        • P(l);N_GUARD,SBLOCK::QAB(F)
      • Refutation
        • P(h);
    • Try
      • S(E);CHECK
      • Vars
        • K(i);P-FLIGHT,S_CUTB(f),S_CUTQ(c)::B(A)
      • Refutation
        • B(f);XS(E)
    • Try
      • S(E);CHECK
      • Vars
        • K(i);P-FLIGHT,S_CUTP(k)::B(A)
      • Refutation
        • P(k);XS(E)
    • Try
      • R(G);XP(k)
      • Threat
        • S(J)
      • Refutation
        • Q(c);
    • Try
      • R(G);
      • Threat
        • S(J)
      • Vars
        • B(f);N_GUARD,SBLOCK::S(E)
      • Refutation
        • Q(c);
    • Try
      • R(G);
      • Threat
        • S(J)
      • Vars
        • B(f);N_GUARD,SBLOCK::S(E)
      • Refutation
        • Q(c);
    • Try
      • Q(F);CHECK
      • Vars
        • P(l);P_SPINP(l)::S(J)
      • Refutation
        • S(g);XQ(F)
  • Actual
    • R(G);XP(j)
    • Threat
      • QAB1(F)
    • Vars
      • K(i);N_GUARD,S_FLIGHT,XR(G)::QAB(F)
      • B(m);SBLOCK,XR(G)::S(J)
      • B(f);N_GUARD::R1(G),XP(h)
      • S(g);N_GUARD::QAB(F)
      • P(l);N_GUARD::R1(G)
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