MESON Chess Problem Database

Problem Display
PID: 122375 (7K/3n2R1/4pk2/4rp2/6n1/8/1Q6/B7 w - - 0 1)

Milewski, Stefan

Sinfonie Scacchistiche, 1995

7K/3n2R1/4pk2/4rp2/6n1/8/1Q6/B7

#2

4 + 6

6490 yacpdb 2009
136 Problem Observer 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • threat
        • 2.Qg5#
      • 1...f4
        • 2.Qxf4#
      • 1...Se3!
    • 1.Qd2?
      • threat
        • 2.Qg5#
      • 1...f4
        • 2.Qxf4#
      • 1...Se3!
    • 1.Qf2?
      • threat
        • 2.Qh4#
      • 1...f4
        • 2.Qxf4#
      • 1...Sxf2!
    • 1.Qh2?
      • threat
        • 2.Qh4#
      • 1...f4
        • 2.Qxf4#
      • 1...Sxh2!
    • 1.Qb4?
      • threat
        • 2.Qe7#
      • 1...f4
        • 2.Qxf4#
      • 1...Sc5!
  • Keys
    • 1.Qd4!
      • 1...f4
        • 2.Qxf4#
      • 1...Sf2
        • 2.Qh4#
      • 1...Sh2
        • 2.Qh4#
      • 1...Se3
        • 2.Qh4#
      • 1...Sh6
        • 2.Qh4#
      • 1...Sc5
        • 2.Qd8#
      • 1...Sb6
        • 2.Qd8#
      • 1...Sb8
        • 2.Qd8#
      • 1...Sf8
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • S(a);
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • S(a);
    • Try
      • Q(B);P_PINP(c)
      • Threat
        • QAB(B)
      • Vars
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • S(a);N_SPINP(c),XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • S(a);XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • S(f);
  • Actual
    • Q(B);
    • Vars
      • P(c);OGATEB::QAR2(B),XP(c)
      • S(a);OGATE::QAB(B)
      • S(f);OGATE::QAB(B)
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