MESON Chess Problem Database

Problem Display
PID: 71037 (2B2r2/5P2/2QP3p/1N1P3K/2NPk1p1/Rn4P1/2Pp1nP1/4rR2 w - - 0 1)

Velimirovic, Milan

4th Place, Yugoslav Championship, 1998

2B2r2/5P2/2QP3p/1N1P3K/2NPk1p1/Rn4P1/2Pp1nP1/4rR2

#2

14 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re8
      • 2.fxe8Q#
      • 2.fxe8R#
    • 1...Sd1
      • 2.Bf5#
      • 2.Rf4#
    • 1...Sh1
      • 2.Bf5#
      • 2.Rf4#
    • 1...Sd3
      • 2.Bf5#
    • 1...Sh3
      • 2.Bf5#
    • 1...Sa1
      • 2.Sxd2#
    • 1...Sc1
      • 2.Sxd2#
    • 1...Sxd4
      • 2.Sc3#
    • 1...Sa5
      • 2.Sxd2#
    • 1...Sc5
      • 2.Sxd2#
  • Tries
    • 1.Sxd2+?
      • 1...Sxd2
        • 2.Rxe1#
      • 1...Ke3!
    • 1.Qd7?
      • threat
        • 2.Qf5#
        • 2.Qe6#
      • 1...Rxf7
        • 2.Qe6#
      • 1...Rxc8
        • 2.Qe6#
      • 1...Sxd4
        • 2.Sc3#
      • 1...Re8
        • 2.Qf5#
      • 1...Sd3
        • 2.Qf5#
      • 1...Sc5
        • 2.Qf5#
      • 1...Kxd5!
    • 1.Qe8+?
      • 1...Kxd5
        • 2.Sb6#
      • 1...Rxe8!
  • Keys
    • 1.d7!
      • threat
        • 2.Qe6#
      • 1...Kf5
        • 2.Qg6#
      • 1...Sxd4
        • 2.Sbd6#
      • 1...Re8
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Sd3
        • 2.d6#
      • 1...Sc5
        • 2.Scd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(h);OGATE::PXR(h)=Q
    • S(c);::B(N)
    • S(d);N_GUARD::S(F),XP(b)
    • S(d);SBLOCK,XP(G)::S(H)
  • Tries
    • Try
      • S(F);CHECK,XP(b)
      • Vars
        • S(d);XS(F)::R(A),XR(a)
      • Refutation
        • K(e);P-FLIGHT,P_SPINS(d)
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XP(M)::QAR2(K)
        • R(h);XB(N)::QAR2(K)
        • S(d);SBLOCK,XP(G)::S(H)
        • R(h);::QAB1(K)
        • S(c);::QAB1(K)
        • S(d);::QAB1(K)
      • Refutation
        • K(e);S_FLIGHT,XP(I)
    • Try
      • Q(K);CHECK
      • Vars
        • K(e);S_FLIGHT,XP(I)::S(F)
      • Refutation
        • R(h);XQ(K)
  • Actual
    • P(L);
    • Threat
      • QAR2(K)
    • Vars
      • K(e);P_SPINS(c),S_FLIGHT::QAB1(K)
      • S(d);SBLOCK,XP(G)::S(H)
      • R(h);OGATE::PXR(h)=Q
      • S(c);::QAB(K)+P(I)
      • S(d);::S(F)
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