MESON Chess Problem Database

Problem Display
PID: 109728 (bn2N3/2r3pK/r3p1N1/2p2kpp/8/3PpB2/1p6/1q2Q3 w - - 0 1)

Wrobel, Marian

BCF, 1951

bn2N3/2r3pK/r3p1N1/2p2kpp/8/3PpB2/1p6/1q2Q3

#2

6 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Sc6
        • 2.Sd6#
      • 1...Sd7
        • 2.Sxg7#
      • 1...Bxf3!
    • 1.Qxe3?
      • threat
        • 2.Qe5#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...e5
        • 2.Qxe5#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sc6
        • 2.Qe4#
      • 1...Sd7
        • 2.Se7#
      • 1...Qe1!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qe5#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...e5
        • 2.Qxe5#
      • 1...Sc6
        • 2.Be4#
      • 1...Sd7
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(i);::QAR1(A),XP(i)
        • S(m);S_CUTR(h)::S(F)
        • S(m);S_CUTR(j)::S(F),XP(k)
      • Refutation
        • B(l);XB(C)
    • Try
      • Q(A);XP(c)
      • Threat
        • QAR1(A)
      • Vars
        • B(l);OGATE,XB(C)::QAR2(A),XB(l)
        • P(i);::QAR1(A),XP(i)
        • B(l);N_GUARD::QAB1(A),XB(l)
        • S(m);S_CUTB(l)::QAB1(A)
        • S(m);S_CUTR(j)::S(D)
      • Refutation
        • Q(a);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • B(l);OGATE,XB(C)::QAR2(A),XB(l)
      • P(i);::QAR1(A),XP(i)
      • S(m);S_CUTB(l)::B(C)
      • S(m);S_CUTR(j)::S(D)
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