MESON Chess Problem Database

Problem Display
PID: 136459 (n7/nB1N4/1p1Q4/pp1P3r/2k1K2p/R3P2r/2N3PP/8 w - - 0 1)

Denkovski, Gligor

10th Place, Liga Problemista, 1982/1

n7/nB1N4/1p1Q4/pp1P3r/2k1K2p/R3P2r/2N3PP/8

#2

10 + 9

6490 yacpdb 2010
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3+
      • 2.Sxe3#
    • 1...Rxd5
      • 2.Bxd5#
      • 2.Qxd5#
    • 1...Re5+
      • 2.Sxe5#
    • 1...Rh6
      • 2.Se5#
    • 1...Rh7
      • 2.Se5#
    • 1...Rh8
      • 2.Se5#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sc8
      • 2.Qc6#
    • 1...Sc7
      • 2.Sxb6#
    • 1...a4
      • 2.Qb4#
  • Tries
    • 1.Bxa8?
      • threat
        • 2.Sxb6#
      • 1...Rxe3+
        • 2.Sxe3#
      • 1...Re5+
        • 2.Sxe5#
      • 1...Sc8
        • 2.Qc7#
        • 2.Qc6#
      • 1...b4!
    • 1.Rd3?
      • threat
        • 2.Sa3#
      • 1...Rxe3+
        • 2.Sxe3#
      • 1...Re5+
        • 2.Sxe5#
      • 1...b4!
    • 1.Qc7+?
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sxc7!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qf1#
      • 1...Rxe3+
        • 2.Kxe3#
      • 1...Re5+
        • 2.Kxe5#
      • 1...Rxd5
        • 2.Bxd5#
      • 1...Rf3
        • 2.Kxf3#
      • 1...Rf5
        • 2.Kxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(a);CHECK,XP(E)::S(A),XR(a)
    • R(f);CHECK,N_GUARD::S(J),XR(f)
    • R(f);N_GUARD::S(J)
    • S(h);N_GUARD::QAR2(H),XS(h)
    • S(h);N_GUARD::QAR2(H)
    • S(i);N_GUARD::S(J),XP(g)
    • P(d);N_GUARD::QAR1(H)
  • Tries
    • Try
      • B(I);XS(i)
      • Threat
        • S(J),XP(g)
      • Vars
        • R(a);CHECK,XP(E)::S(A),XR(a)
        • R(f);CHECK,N_GUARD::S(J),XR(f)
      • Refutation
        • P(e);
    • Try
      • R(D);
      • Threat
        • S(A)
      • Vars
        • R(a);CHECK,XP(E)::S(A),XR(a)
        • R(f);CHECK,N_GUARD::S(J),XR(f)
      • Refutation
        • P(e);
    • Try
      • Q(H);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR2(H),XS(h)
      • Refutation
        • S(i);XQ(H)
  • Actual
    • Q(H);
    • Threat
      • QAB(H)
    • Vars
      • R(a);CHECK,XP(E)::QAR(H)+K(F),XR(a)
      • R(f);CHECK::QAR(H)+K(F),XR(f)
      • R(f);OGATE,XP(G)::B(I),XR(f)
      • R(a);::QAR(H)+K(F),XR(a)
      • R(f);::QAR(H)+K(F),XR(f)
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