MESON Chess Problem Database

Problem Display
PID: 97736 (K3b3/p3Qn2/r1k2n1q/8/P2P4/1PN5/6R1/7B w - - 0 1)

Dukic, Milenko

Problemas, 1971

K3b3/p3Qn2/r1k2n1q/8/P2P4/1PN5/6R1/7B

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kb6
      • 2.Qc5#
    • 1...Bd7
      • 2.Qc5#
    • 1...Sh5
      • 2.Rg6#
    • 1...Sh7
      • 2.Rg6#
    • 1...Sg8
      • 2.Rg6#
  • Tries
    • 1.Rg6+?
      • 1...Kb6
        • 2.Qc5#
      • 1...Qxh1!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Qb7#
      • 1...Kd5
        • 2.Rg5#
      • 1...Kb6
        • 2.Qc7#
      • 1...Rb6
        • 2.Rc2#
      • 1...Bd7
        • 2.Qc5#
      • 1...Sd7
        • 2.Rg6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qd6#

This is a version of 251832

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • K(b);P-FLIGHT::QAB1(G)
    • B(g);SBLOCK::QAR1(G)
    • S(c);::B(A)+R(B),DCHECK
  • Tries
    • Try
      • R(B);CHECK,P_PINS(c)
      • Vars
        • K(b);P-FLIGHT::QAB1(G)
      • Refutation
        • Q(d);XB(A)
  • Actual
    • S(D);
    • Threat
      • QAB1(G)
    • Vars
      • K(b);S_FLIGHT::B(A)+R(B),DCHECK
      • K(b);P-FLIGHT::QAB1(G)
      • R(a);SBLOCK::B(A)+R(B),DCHECK
      • B(g);SBLOCK::QAR1(G)
      • S(c);::B(A)+R(B),DCHECK
      • S(f);N_GUARD::QAR1(G),XS(f)
      • S(f);N_GUARD::QAR1(G)
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