MESON Chess Problem Database

Problem Display
PID: 159531 (4K3/P2R2rP/2pP1Rp1/p2k1P1Q/2pBp3/1PP1P1N1/q2Pb3/8 w - - 0 1)

Djurasevic, Branislav

1st Prize, Zagrebacki susreti, 1990

4K3/P2R2rP/2pP1Rp1/p2k1P1Q/2pBp3/1PP1P1N1/q2Pb3/8

#2

14 + 9

15526 Svi Moji Sahovski Problemi (Djurasevic) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Re7+
      • 2.dxe7#
    • 1...Rg8+
      • 2.hxg8Q#
      • 2.hxg8B#
    • 1...Bf1
      • 2.fxg6#
    • 1...Bd3
      • 2.fxg6#
    • 1...c5
      • 2.a8Q#
      • 2.a8B#
    • 1...gxf5
      • 2.Qxf5#
  • Tries
    • 1.a8S?
      • threat
        • 2.Sb6#
        • 2.Sc7#
      • 1...Re7+
        • 2.dxe7#
      • 1...Rg8+
        • 2.hxg8Q#
        • 2.hxg8B#
      • 1...Qxb3
        • 2.Sc7#
      • 1...Rxd7
        • 2.Sb6#
      • 1...cxb3
        • 2.Sb6#
      • 1...c5!
  • Keys
    • 1.d3!
      • threat
        • 2.dxe4#
      • 1...Re7+
        • 2.dxe7#
      • 1...Rg8+
        • 2.hxg8Q#
        • 2.hxg8B#
      • 1...Bxd3
        • 2.fxg6#
      • 1...cxb3
        • 2.c4#
      • 1...cxd3
        • 2.c4#
      • 1...exd3
        • 2.e4#
      • 1...c5
        • 2.a8Q#
        • 2.a8B#
      • 1...Qb1
        • 2.bxc4#
      • 1...Qc2
        • 2.bxc4#
      • 1...Bf3
        • 2.dxc4#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(i);CHECK,OGATE::R(L)+P(I),XR(i)
    • R(i);CHECK,OGATE::PXR(i)=Q
    • B(b);N_GUARD::QAR(H)+P(G),XP(h)
    • P(g);::P=Q
    • P(h);OGATE,P_SPINP(h),XP(G)::QAR2(H),XP(h)
  • Tries
    • Try
      • P(K);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);CHECK,OGATE::R(L)+P(I),XR(i)
        • R(i);CHECK,OGATE::PXR(i)=Q
        • Q(a);XP(B)::S(K)
        • R(i);XR(L)::S(K)
        • P(c);XP(B)::S(K)
      • Refutation
        • P(g);
  • Actual
    • P(A);
    • Threat
      • P(A),XP(d)
    • Vars
      • R(i);CHECK,OGATE::R(L)+P(I),XR(i)
      • R(i);CHECK,OGATE::PXR(i)=Q
      • B(b);N_GUARD,XP(A)::QAR(H)+P(G),XP(h)
      • P(c);OGATE,XP(B)::P(C)
      • P(c);OGATE,XP(A)::P(C)
      • P(d);OGATE,XP(A)::P(D)
      • P(g);::P=Q
      • Q(a);N_GUARD::P(B),XP(c)
      • B(b);N_GUARD::P(A),XP(c)
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