MESON Chess Problem Database

Problem Display
PID: 7169 (8/2N3K1/6QR/k4P2/1r5B/P1Nb4/5p2/3r1q2 w - - 0 1)

Kukin, Gennady

Schach, 1998

8/2N3K1/6QR/k4P2/1r5B/P1Nb4/5p2/3r1q2

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Qb6#
    • 1...Rc4
      • 2.Qa6#
      • 2.Qb6#
    • 1...Rd4
      • 2.Qb6#
    • 1...Re4
      • 2.Qb6#
    • 1...Rf4
      • 2.Qb6#
    • 1...Rxh4
      • 2.Qb6#
    • 1...Rb5
      • 2.Qa6#
    • 1...Rb6
      • 2.Qxb6#
    • 1...Bb5
      • 2.Qb6#
  • Keys
    • 1.S7b5!
      • threat
        • 2.Bd8#
        • 2.Qa6#
        • 2.Qb6#
      • 1...Rxh4
        • 2.Qa6#
        • 2.Qb6#
      • 1...Rxb5
        • 2.Qa6#
      • 1...Bxb5
        • 2.Qb6#
      • 1...Bxf5
        • 2.Qa6#
        • 2.Qb6#
      • 1...Qg2
        • 2.Bd8#
      • 1...Qg1
        • 2.Bd8#
      • 1...Rc4
        • 2.Qa6#
        • 2.Qb6#
      • 1...Rd4
        • 2.Qa6#
        • 2.Qb6#
      • 1...Rg4
        • 2.Bd8#
      • 1...Bb1
        • 2.Qa6#
        • 2.Qb6#
      • 1...Bc2
        • 2.Qa6#
        • 2.Qb6#
      • 1...Be2
        • 2.Qa6#
        • 2.Qb6#
      • 1...Bc4
        • 2.Qa6#
        • 2.Qb6#
      • 1...Be4
        • 2.Qa6#
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::QAB1(E)
    • R(e);N_GUARD,XB(C)::QAB1(E)
    • R(e);S_CUTB(d)::QAR1(E)
    • R(e);N_GUARD::QAB1(E),XR(e)
    • B(d);S_CUTR(e)::QAB1(E)
  • Actual
    • S(G);
    • Threat
      • DUALS(3)
    • Vars
      • R(e);XS(G)::QAR1(E)
      • B(d);XS(G)::QAB1(E)
      • Q(b);P_PINQ(E)::B(C)
      • R(e);P_PINQ(E)::B(C)
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