MESON Chess Problem Database

Problem Display
PID: 99252 (1R3q2/B1P2N2/2Bp1n2/8/NPkPr3/p7/2P4Q/K2n1b2 w - - 0 1)

Labai, Zoltan

Sakkelet, 1997

1R3q2/B1P2N2/2Bp1n2/8/NPkPr3/p7/2P4Q/K2n1b2

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.Sxd6#
    • 1...Qg7
      • 2.Sxd6#
    • 1...Qc8
      • 2.Sxd6#
    • 1...Qe8
      • 2.Sxd6#
    • 1...Qg8
      • 2.Sxd6#
    • 1...Qh8
      • 2.Sxd6#
    • 1...Re7
      • 2.Sxd6#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Sb6#
      • 1...Qxb8
        • 2.Sxd6#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd5
        • 2.Bb5#
      • 1...Sd7!
  • Keys
    • 1.Qxd6!
      • threat
        • 2.Bb5#
      • 1...Qxd6
        • 2.Sxd6#
      • 1...Qxb8
        • 2.Qc5#
      • 1...Qe8
        • 2.Qc5#
      • 1...Re5
        • 2.Sxe5#
      • 1...Sc3
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • Q(h);N_GUARD::S(J),XP(f)
    • R(e);S_CUTQ(h)::S(J),XP(f)
  • Tries
    • Try
      • Q(C);
      • Threat
        • S(D)
      • Vars
        • Q(h);N_GUARD,XR(K)::S(J),XP(f)
        • B(b);N_GUARD::QAB1(C),XB(b)
        • S(a);N_GUARD::QAR1(C),XS(a)
        • S(g);SBLOCK::B(G)
      • Refutation
        • S(g);
  • Actual
    • Q(C);XP(f)
    • Threat
      • B(G)
    • Vars
      • Q(h);XQ(C)::S(J),XQ(h)
      • Q(h);N_GUARD,XR(K)::QAR1(C)
      • Q(h);N_GUARD::QAR1(C)
      • R(e);N_GUARD::S(J),XR(e)
      • S(a);SBLOCK::S(D)
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