MESON Chess Problem Database

Problem Display
PID: 135956 (1BRn4/K2R4/1p6/p2PN3/1PNkPp2/3b2n1/3PPb2/7Q w - - 0 1)

Dyachuk, Vasyl Vasilovich

Kopyl, Valery Volodimirovich

Mat Plus, 2009

1BRn4/K2R4/1p6/p2PN3/1PNkPp2/3b2n1/3PPb2/7Q

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc4
      • 2.Rxc4#
    • 1...Bxe4
      • 2.Qa1#
    • 1...Sxe4
      • 2.Sf3#
    • 1...Sc6+
      • 2.dxc6#
    • 1...Se6
      • 2.dxe6#
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf3#
        • 2.Qa1#
      • 1...Sc6+
        • 2.Sxc6#
      • 1...Kxe5
        • 2.Qh8#
      • 1...Bxe2
        • 2.Qa1#
      • 1...Bxe4
        • 2.Sb5#
      • 1...Sxh1
        • 2.Sf3#
      • 1...Sxe2
        • 2.Sf3#
        • 2.Sf5#
      • 1...Sxe4
        • 2.Sf5#
      • 1...Be1
        • 2.Sf3#
      • 1...Bg1
        • 2.Sf3#
      • 1...Bb1
        • 2.Sf3#
        • 2.Sb5#
      • 1...Sf1
        • 2.Sf3#
        • 2.Sf5#
      • 1...f3
        • 2.Sxf3#
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(b);OGATE,XS(E)::R1(L),XB(b)
    • B(b);SBLOCK,XP(F)::QAB(A)
    • S(c);SBLOCK,XP(F)::S(H)
    • S(h);CHECK,OGATE::R(J)+P(G),XS(h)
    • S(h);OGATE::R(J)+P(G),XS(h)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • S(h);CHECK,N_GUARD::S(H),XS(h)
      • K(d);OGATEB,S_FLIGHT,XS(H)::QAB(A)
      • B(b);XP(C)::QAB(A)
      • B(b);N_GUARD,XP(F)::S(E)
      • S(c);XQ(A)::S(H)
      • S(c);N_GUARD,XP(F)::S(E)
      • B(a);::S(H)
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