MESON Chess Problem Database

Problem Display
PID: 132686 (Qn4r1/q1PR1p1P/1Np1kNn1/2P3P1/r1p1K1P1/p7/B7/8 w - - 0 1)

Kodric, Gorazd

9th Place, Liga Problemista, 2004/1

Qn4r1/q1PR1p1P/1Np1kNn1/2P3P1/r1p1K1P1/p7/B7/8

#2

11 + 10

14475 Mat Plus Review 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Bxc4#
    • 1...Ra6
      • 2.Bxc4#
    • 1...Rd8
      • 2.cxd8S#
    • 1...Se7
      • 2.Rd6#
    • 1...Sa6
      • 2.Qxc6#
  • Tries
    • 1.Sbd5?
      • threat
        • 2.Rd6#
      • 1...c3+
        • 2.Sb4#
      • 1...cxd5+
        • 2.Qxd5#
      • 1...Qxc7
        • 2.Sxc7#
      • 1...Sxd7
        • 2.Qxc6#
      • 1...Rd8
        • 2.cxd8S#
      • 1...Qxc5!
    • 1.hxg8Q?
      • threat
        • 2.Qxf7#
      • 1...Se5
        • 2.Qe8#
      • 1...Se7
        • 2.Rd6#
      • 1...Sh8
        • 2.Qe8#
      • 1...Sxd7!
    • 1.hxg8S?
      • threat
        • 2.Rd6#
      • 1...Sxd7
        • 2.Qxc6#
      • 1...Qxc7!
  • Keys
    • 1.Sfd5!
      • threat
        • 2.Rd6#
      • 1...c3+
        • 2.Sb4#
      • 1...cxd5+
        • 2.Qxd5#
      • 1...f5+
        • 2.gxf5#
      • 1...Qxc7
        • 2.Sxc7#
      • 1...Sxd7
        • 2.Qxc6#
      • 1...Rd8
        • 2.cxd8S#
      • 1...f6
        • 2.hxg8Q#
        • 2.hxg8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::B(A),XP(c)
    • R(j);OGATE::PXR(j)=S
    • S(f);SBLOCK::R1(I)
    • S(i);N_GUARD::QAR2(K),XP(d)
  • Tries
    • Try
      • S(F);N_PINP(c)
      • Threat
        • R1(I)
      • Vars
        • P(c);CHECK::B(A)+S(F)
        • P(d);CHECK,OGATE,XS(F)::QAB1(K),XP(d)
        • Q(g);XP(H)::S(F),XQ(g)
        • S(i);N_GUARD,XR(I)::QAR2(K),XP(d)
        • R(j);OGATE::PXR(j)=S
      • Refutation
        • Q(g);XP(D)
    • Try
      • P(J);XR(j)
      • Threat
        • QAB1(J),XP(h)
      • Vars
        • S(f);N_GUARD::QAR2(J)
        • S(f);SBLOCK::R1(I)
      • Refutation
        • S(i);XR(I)
    • Try
      • P(J);XR(j)
      • Threat
        • R1(I)
      • Vars
        • S(i);N_GUARD,XR(I)::QAR2(K),XP(d)
      • Refutation
        • Q(g);XP(H)
  • Actual
    • S(G);N_PINP(c)
    • Threat
      • R1(I)
    • Vars
      • P(c);CHECK::B(A)+S(G)
      • P(d);CHECK,OGATE,XS(G)::QAB1(K),XP(d)
      • P(h);CHECK,OGATE::P(C),XP(h)
      • Q(g);XP(H)::S(G),XQ(g)
      • S(i);N_GUARD,XR(I)::QAR2(K),XP(d)
      • R(j);OGATE::PXR(j)=S
      • P(h);::PXR(j)=Q
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