MESON Chess Problem Database

Problem Display
PID: 49750 (b3R1K1/BQ6/nr2P3/1P1P1N2/1P2kPP1/1N1qp1P1/B3P3/b2R2n1 w - - 0 1)

Kovacevic, Marjan

3rd HM., The Problemist, 2003/I

b3R1K1/BQ6/nr2P3/1P1P1N2/1P2kPP1/1N1qp1P1/B3P3/b2R2n1

#2

16 + 8

56 The Problemist 2005
23 Die Schwalbe 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Bxb1#
    • 1...Qxd5
      • 2.Bb1#
    • 1...Rxb5
      • 2.Sd6#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Rxe6
      • 2.Sd6#
    • 1...Sf3
      • 2.exd3#
    • 1...Sxb4
      • 2.Sc5#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Sc7
      • 2.Sc5#
    • 1...Sb8
      • 2.Sc5#
  • Keys
    • 1.Qh7!
      • threat
        • 2.Se7#
      • 1...Kxd5
        • 2.Sc5#
      • 1...Qxe2
        • 2.Sh4#
      • 1...Qxd5
        • 2.Sd6#
      • 1...Rxe6
        • 2.Sxe3#
      • 1...Sxe2
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(c);OGATEB::B(B),XQ(c)
    • Q(c);OGATEB,P_PINP(L),P_SPINQ(c),XP(J)::B(B)
    • R(g);N_GUARD,XP(I)::S(K)
    • R(g);N_GUARD::S(K),XR(g)
    • R(g);N_GUARD,P_SPINR(g),XP(L)::S(K)
    • S(b);SBLOCK::P(C),XQ(c)
    • S(f);N_GUARD,XP(F)::S(D)
    • S(f);N_GUARD::S(D),XS(f)
    • S(f);N_GUARD::S(D)
  • Actual
    • Q(N);
    • Threat
      • QAB(N)+S(K)
    • Vars
      • K(e);P_SPINQ(c),S_FLIGHT,XP(J)::B(B)+S(D)
      • Q(c);XP(C)::QAB(N)+S(K)
      • Q(c);P_PINP(L),XP(J)::QAB(N)+S(K),DCHECK
      • R(g);P_SPINR(g),XP(L)::QAB(N)+S(K),XP(d)
      • S(b);N_GUARD,XP(C)::QAB(N)
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