MESON Chess Problem Database

Problem Display
PID: 239263 (1b6/q2pQpKb/2p5/4n1B1/r3k1p1/1N6/5R2/3R4 w - - 0 1)

Palkoska, Emil

Sachove umeni (Ceskoslovensky sach), 1927

1b6/q2pQpKb/2p5/4n1B1/r3k1p1/1N6/5R2/3R4

#2

6 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Sxc5#
    • 1...Qa6
      • 2.Sc5#
    • 1...Qb7
      • 2.Sc5#
    • 1...Qc7
      • 2.Sc5#
    • 1...Qa8
      • 2.Sc5#
  • Keys
    • 1.Qc5!
      • threat
        • 2.Rf4#
      • 1...Qxc5
        • 2.Sxc5#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Sd3
        • 2.Sd2#
      • 1...Sf3
        • 2.Re2#
      • 1...Sc4
        • 2.Rd4#
      • 1...Sg6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • Q(f);N_GUARD::S(C),XQ(f)
    • Q(f);N_GUARD::S(C)
  • Actual
    • Q(E);N_PINS(d)
    • Threat
      • R1(B)
    • Vars
      • Q(f);XQ(E)::S(C),XQ(f)
      • R(a);N_GUARD::R1(A),XR(a)
      • S(d);SBLOCK::S(C)
      • S(d);SBLOCK::R(B)
      • S(d);S_CUTR(a)::R1(A)
      • S(d);OGATE::QAB1(E)
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