MESON Chess Problem Database

Problem Display
PID: 44157 (2n5/b1PN1p2/pq2NQ1K/3kP1R1/BR6/8/4nB2/5b2 w - - 0 1)

Kovacevic, Marjan

3rd Prize, Yugoslav Championship, 2001

2n5/b1PN1p2/pq2NQ1K/3kP1R1/BR6/8/4nB2/5b2

#2

10 + 8

3486 French Solving Championship 2002
56 The Problemist 2002
15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc7
      • 2.Sxc7#
    • 1...Sc1
      • 2.Sf4#
    • 1...Sg1
      • 2.Sf4#
    • 1...Sc3
      • 2.Sf4#
    • 1...Sg3
      • 2.Sf4#
    • 1...Sf4
      • 2.Sxf4#
    • 1...fxe6
      • 2.Qf3#
  • Tries
    • 1.Sec5?
      • threat
        • 2.Bb3#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Qxc5
        • 2.Qxf7#
      • 1...Qxb4
        • 2.Qxf7#
      • 1...Qb5
        • 2.Qf3#
      • 1...Qd6
        • 2.exd6#
      • 1...Sc1
        • 2.Rd4#
      • 1...Sg1
        • 2.Rd4#
      • 1...Sc3
        • 2.Rd4#
      • 1...Sg3
        • 2.Rd4#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sf4
        • 2.Rd4#
      • 1...Sd6
        • 2.exd6#
      • 1...Qe6!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Sf6#
      • 1...Qxf2
        • 2.Sf4#
      • 1...Qxb4
        • 2.Sec5#
      • 1...Qb5
        • 2.Sd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(e);XP(I)::S(F),XQ(e)
    • S(b);N_GUARD::S(F)
    • S(b);N_GUARD::S(F),XS(b)
    • P(g);SBLOCK,XS(F)::QAB(G)
  • Tries
    • Try
      • S(F);P_SPINQ(G)
      • Threat
        • B(B)
      • Vars
        • Q(e);CHECK,XQ(G)::S(J),XQ(e)
        • Q(e);N_PINQ(G),XS(F)::QAB(G),XP(g)
        • Q(e);N_PINQ(G),XR(C)::QAB(G),XP(g)
        • Q(e);N_PINQ(G)::QAB(G)
        • Q(e);OGATE::R(E)+P(D),XQ(e)
        • S(b);N_GUARD::R1(C)
        • S(b);N_GUARD::R1(C),XS(b)
        • S(h);N_PINQ(G),OGATE::R(E)+P(D),XS(h)
      • Refutation
        • Q(e);
  • Actual
    • Q(G);P_SPINS(F),XP(g)
    • Threat
      • S(J)
    • Vars
      • Q(e);N_PINS(F),XB(A)::QAB(G)+S(F),DCHECK
      • Q(e);N_PINS(F),XR(C)::QAB(G)+S(F)
      • Q(e);N_PINS(F)::QAB(G)+S(F)
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