MESON Chess Problem Database

Problem Display
PID: 119819 (8/8/6bK/2p5/2n3p1/bq1pN3/4kP1R/7Q w - - 0 1)

Vetesnik, Ladislav

Tijdschrift van den Nederlandsch-Indischen Schaakbond, 1925

8/8/6bK/2p5/2n3p1/bq1pN3/4kP1R/7Q

#2

5 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qxd1#
    • 1...Qa2
      • 2.Qd1#
    • 1...Qb2
      • 2.Qd1#
    • 1...Qc3
      • 2.Qd1#
    • 1...Qb4
      • 2.Qd1#
    • 1...Qb5
      • 2.Qd1#
    • 1...Qb6
      • 2.Qd1#
    • 1...Qb7
      • 2.Qd1#
    • 1...Qb8
      • 2.Qd1#
  • Keys
    • 1.Sd5!
      • threat
        • 2.f3#
        • 2.f4#
      • 1...Bc1+
        • 2.f4#
      • 1...Kd2
        • 2.f3#
        • 2.f4#
      • 1...Qb8
        • 2.f4#
      • 1...Be4
        • 2.f3#
      • 1...Se3
        • 2.fxe3#
      • 1...d2
        • 2.Sf4#
      • 1...g3
        • 2.fxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 8
  • Sets
    • Q(c);N_GUARD::QAB1(A),XQ(c)
    • Q(c);N_GUARD::QAB1(A)
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(b);CHECK::R(C)+P(B)
      • Q(c);::R(C)+P(B)
      • B(h);::R(C)+P(B)
      • S(e);OGATE::R(C)+P(B),XS(e)
      • P(d);SBLOCK::S(D)
      • P(f);OGATE::R(C)+P(B),XP(f)
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