MESON Chess Problem Database

Problem Display
PID: 239012 (2R5/1Q3p2/1P2PP2/1p1N1q2/1K2k1P1/4P2R/b7/B1N5 w - - 0 1)

Petite, Efren

Problemas, 2014

2R5/1Q3p2/1P2PP2/1p1N1q2/1K2k1P1/4P2R/b7/B1N5

#2

12 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Sc3#
    • 1...Qxf6
      • 2.Sxf6#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Sc3#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Qxg4
        • 2.Qe5#
      • 1...Qxd5
        • 2.Qf4#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Bxd5
        • 2.Qc2#
      • 1...Qf3
        • 2.Qe5#
      • 1...Qe5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(d);SBLOCK::QAB(K)+S(G),DCHECK
    • Q(d);XP(J)::QAB(K)+S(G),DCHECK,XQ(d)
  • Actual
    • Q(K);
    • Threat
      • S(G)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(G)::QAB1(K)
      • Q(d);N_GUARD,XP(F)::QAR1(K)
      • Q(d);N_GUARD,SBLOCK,XS(G)::QAR1(K)
      • Q(d);XP(J)::S(G),XQ(d)
      • B(a);SBLOCK,XS(G)::QAB(K)
      • Q(d);N_GUARD::QAR1(K)
      • Q(d);N_GUARD::QAR1(K),XQ(d)
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