MESON Chess Problem Database

Problem Display
PID: 47559 (1K6/R1NBn3/2qQ4/N7/k2pr3/8/8/8 w - - 0 1)

Havel, Miroslav

Narodni osvobozeni, 1933

1K6/R1NBn3/2qQ4/N7/k2pr3/8/8/8

#2

6 + 5

4872 Themes-64 1956
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qb5+
      • 2.Bxb5#
    • 1...Sd5
      • 2.Bxc6#
    • 1...Sf5
      • 2.Bxc6#
    • 1...Sg6
      • 2.Bxc6#
    • 1...Sc8
      • 2.Bxc6#
    • 1...Sg8
      • 2.Bxc6#
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qb4#
      • 1...Qb5+
        • 2.Sb6#
      • 1...Kb5
        • 2.Qb4#
      • 1...Sxd5
        • 2.Bxc6#
      • 1...d3
        • 2.Sc3#

This anticipates 109067(1948)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(d);CHECK,OGATE::B(E),XQ(d)
    • S(e);N_GUARD::B(E),XQ(d)
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • Q(d);CHECK::S(D)
      • K(a);S_FLIGHT::QAR1(B)
      • S(e);N_GUARD,XS(D)::B(E),XQ(d)
      • P(b);N_GUARD::S(D)
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