MESON Chess Problem Database

Problem Display
PID: 157045 (8/8/8/5R2/8/3ppp2/2Q1b2P/3qrkNK w - - 0 1)

Vecu, Florea

4th Comm., Best Problems, 2007

8/8/8/5R2/8/3ppp2/2Q1b2P/3qrkNK

#2

5 + 7

4901 Best Problems 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf2
      • 2.Rxf3#
  • Keys
    • 1.Sxf3!
      • threat
        • 2.Sd2#
      • 1...Kf2+
        • 2.Sg1#
      • 1...Bxf3+
        • 2.Qg2#
      • 1...Qd2
        • 2.Sxd2#
      • 1...d2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,P_PINS(A),P_SPINB(d)::R1(E),XP(g)
  • Actual
    • S(A);XP(g)
    • Threat
      • R(E)+S(A),DCHECK
    • Vars
      • K(c);CHECK,P-FLIGHT,P_SPINB(d)::R(E)+S(A)
      • B(d);CHECK,OGATE,P_SPINB(d),XS(A)::QAB1(C)
      • Q(a);::R(E)+S(A),DCHECK,XQ(a)
      • P(e);::R(E)+S(A),DCHECK,XP(e)
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