MESON Chess Problem Database

Problem Display
PID: 120331 (3bb1B1/B1P2P1R/1n1kNr2/q3R1p1/1N1rppK1/2Q5/4n3/8 w - - 0 1)

Vukcevich, Milan Radoje

US Problem Bulletin, 1992

3bb1B1/B1P2P1R/1n1kNr2/q3R1p1/1N1rppK1/2Q5/4n3/8

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd7
      • 2.cxd8Q#
    • 1...Ke7
      • 2.f8Q#
      • 2.f8B#
    • 1...Qxe5
      • 2.fxe8S#
    • 1...Rd1
      • 2.fxe8S#
    • 1...Rd2
      • 2.fxe8S#
    • 1...Rd3
      • 2.fxe8S#
    • 1...Rxb4
      • 2.fxe8S#
    • 1...Rc4
      • 2.fxe8S#
    • 1...Rd5
      • 2.fxe8S#
    • 1...Bxc7
      • 2.Qxc7#
  • Tries
    • 1.Qxd4+?
      • 1...Ke7
        • 2.Qxd8#
        • 2.cxd8Q#
        • 2.cxd8B#
        • 2.f8Q#
        • 2.f8B#
      • 1...Qd5
        • 2.fxe8S#
      • 1...Sd5
        • 2.fxe8S#
      • 1...Sxd4!
    • 1.Qc5+?
      • 1...Kd7
        • 2.cxd8Q#
        • 2.cxd8R#
      • 1...Qxc5!
  • Keys
    • 1.Bb8!
      • threat
        • 2.cxd8Q#
      • 1...Kxe5
        • 2.cxd8S#
      • 1...Kd7
        • 2.cxd8Q#
      • 1...Ke7
        • 2.f8Q#
        • 2.f8B#
      • 1...Qxe5
        • 2.fxe8S#
      • 1...Bxc7
        • 2.Qxc7#
      • 1...Be7
        • 2.c8Q#
        • 2.c8B#
      • 1...Bd7
        • 2.cxd8Q#
        • 2.cxd8B#
        • 2.c8S#
      • 1...Sd7
        • 2.c8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • K(h);P-FLIGHT::PXB(j)=Q
    • K(h);S_FLIGHT::P=Q
    • Q(e);SBLOCK,XR(D)::PXB(k)=S
    • R(b);::PXB(k)=S
    • R(b);XS(B)::PXB(k)=S
    • B(j);OGATE,XP(G)::QAB1(A),XB(j)
  • Tries
    • Try
      • Q(A);CHECK,XR(b)
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e),S_CUTS(a),S_CUTS(g)::PXB(k)=S
        • S(g);N_GUARD,P_SPINS(g),S_CUTQ(e),S_CUTS(a)::PXB(k)=S
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(h);P-FLIGHT::PXB(j)=Q
      • Refutation
        • Q(e);XQ(A)
  • Actual
    • B(F);
    • Threat
      • PXB(j)=Q
    • Vars
      • K(h);P_SPINR(b),S_FLIGHT,XR(D)::PXB(j)=S
      • K(h);P-FLIGHT::PXB(j)=Q
      • K(h);S_FLIGHT::P=Q
      • Q(e);SBLOCK,XR(D)::PXB(k)=S
      • B(j);OGATE,P_SPINB(j),XP(G)::QAB1(A),XB(j)
      • B(j);N_GUARD,SBLOCK::P=Q
      • S(g);SBLOCK::P=S
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