MESON Chess Problem Database

Problem Display
PID: 187872 (5K2/8/5Q1n/1R6/3P4/5P1N/3B4/3q1k1B w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Sovremenoe slovo, 1910

5K2/8/5Q1n/1R6/3P4/5P1N/3B4/3q1k1B

#2

8 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf3
      • 2.Qxf3#
  • Keys
    • 1.Qa6!
      • threat
        • 2.Rb1#
      • 1...Qxf3+
        • 2.Rf5#
      • 1...Ke2
        • 2.Rb2#
      • 1...Qb3
        • 2.Rxb3#
      • 1...Qb1
        • 2.Rxb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(a);OGATE,P_PINQ(G),P_SPINQ(a),XP(C)::QAR2(G),XQ(a)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)+R(F)
    • Vars
      • Q(a);CHECK,N_GUARD,XP(C)::QAB(G)+R(F)
      • K(b);S_FLIGHT::QAB(G)+R(F)
      • Q(a);N_GUARD::QAB(G)+R(F),XQ(a)
      • Q(a);::QAB(G)+R(F),DCHECK,XQ(a)
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