MESON Chess Problem Database

Problem Display
PID: 264351 (b2NK2b/2pp4/2pk4/R1n5/1Nn5/6P1/B1rp2Q1/8 w - - 0 1)

Beszczynski, Jan

Praca, 1956

(First published on Sat Jun 23 1956)

b2NK2b/2pp4/2pk4/R1n5/1Nn5/6P1/B1rp2Q1/8

#2

7 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Sf7#
    • 1...Sa3
      • 2.Sf7#
    • 1...Se3
      • 2.Sf7#
    • 1...Sxa5
      • 2.Sf7#
    • 1...Sb6
      • 2.Sf7#
    • 1...Se6
      • 2.Sf7#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qxc5#
      • 1...Ke5
        • 2.Qf4#
      • 1...Sxa5
        • 2.Sf7#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Sb2
        • 2.Sf7#
      • 1...Sa3
        • 2.Sf7#
      • 1...Se3
        • 2.Sf7#
      • 1...Se5
        • 2.Qd4#
        • 2.Qf8#
      • 1...Sb6
        • 2.Sf7#
      • 1...Sb3
        • 2.Qf8#
      • 1...Sd3
        • 2.Qf8#
      • 1...Sa4
        • 2.Qf8#
      • 1...Se4
        • 2.Qf8#
      • 1...Sa6
        • 2.Qf8#
      • 1...Se6
        • 2.Sf7#
      • 1...Sb7
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(c);::S(F)
    • S(c);XR(E)::S(F)
    • S(d);SBLOCK::S(F)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XS(d)
    • Vars
      • K(f);P_SPINS(d),S_CUTB(j),S_CUTS(c),S_FLIGHT::QAB1(B)
      • S(c);XR(E)::S(F)
      • B(j);N_GUARD::QAR2(B),XB(j)
      • S(c);::S(F)
      • S(d);::QAB(B)
      • S(d);SBLOCK::S(F)
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