MESON Chess Problem Database

Problem Display
PID: 227878 (8/8/8/2pp2N1/5p2/1P1kp3/R7/Q1K2NB1 w - - 0 1)

Kiszela, Geza

Ujsag, 1926

8/8/8/2pp2N1/5p2/1P1kp3/R7/Q1K2NB1

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Rd2#
  • Tries
    • 1.Se6?
      • threat
        • 2.Sxc5#
      • 1...c4
        • 2.Sc5#
        • 2.Qd4#
      • 1...Ke4!
  • Keys
    • 1.Kb2!
      • threat
        • 2.Qd1#
      • 1...Ke2
        • 2.Kc3#
      • 1...Kd4
        • 2.Kc2#
      • 1...e2
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::R1(E)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G),XP(d)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • QAR2(A)
    • Vars
      • K(a);S_FLIGHT::R(E)+K(B)
      • K(a);P-FLIGHT,P_SPINP(b)::QAB(A)+K(B)
      • P(b);SBLOCK::QAB(A)
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