MESON Chess Problem Database

Problem Display
PID: 226553 (3R4/BQ1n3N/2qR1p1N/3Pp3/4k3/4p1PK/1pP5/1B6 w - - 0 1)

Pituk, Alexander

Sachova skladba, 1946

3R4/BQ1n3N/2qR1p1N/3Pp3/4k3/4p1PK/1pP5/1B6

#2

11 + 7

6245 Alexander Pituk Chess Compositions II (Torok/Labai) 2005
15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd5
      • 2.Qxd5#
    • 1...f5
      • 2.Sg5#
  • Keys
    • 1.Rxf6!
      • threat
        • 2.c4#
      • 1...Qe6+
        • 2.dxe6#
      • 1...Kxd5
        • 2.Qxc6#
      • 1...Qxc2
        • 2.Bxc2#
      • 1...Qxf6
        • 2.d6#
      • 1...Sxf6
        • 2.Sg5#
      • 1...Qa4
        • 2.Sg5#
      • 1...Qc3
        • 2.Sg5#
      • 1...Qc4
        • 2.Sg5#
      • 1...Qc5
        • 2.c3#
      • 1...Qb6
        • 2.c3#
      • 1...Sc5
        • 2.Qb4#
      • 1...Sb6
        • 2.c3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 2
  • Sets
    • Q(e);OGATE,P_SPINQ(e),XP(E)::QAB1(I),XQ(e)
    • P(f);N_GUARD::S(J)
  • Actual
    • R(F);XP(f)
    • Threat
      • B(A)+P(B)
    • Vars
      • Q(e);CHECK,OGATE::QAB(I)+P(E),XQ(e)
      • K(c);OGATEB,P_SPINQ(e),P_SPINS(g),S_FLIGHT,XP(E)::QAB1(I),XQ(e)
      • Q(e);OGATE,P_SPINQ(e),XP(B)::B(A),XQ(e)
      • Q(e);XR(F)::QAB(I)+P(E)
      • S(g);XR(F)::S(J)
      • Q(e);::S(J)
      • Q(e);::B(A)+P(B)
      • S(g);S_CUTQ(e)::QAR(I)
      • S(g);::B(A)+P(B)
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