MESON Chess Problem Database

Problem Display
PID: 225331 (q7/b6b/8/3pQpN1/1Np3pK/4P3/3PkP2/6R1 w - - 0 1)

Libis, Zdenek

Sachova skladba, 2002

q7/b6b/8/3pQpN1/1Np3pK/4P3/3PkP2/6R1

#2

8 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd2
      • 2.Qb2#
    • 1...Kxf2
      • 2.Qh2#
    • 1...Bxe3
      • 2.Qxe3#
  • Tries
    • 1.Qh2?
      • threat
        • 2.f3#
        • 2.f4#
      • 1...Bxe3
        • 2.fxe3#
      • 1...Qb8
        • 2.f4#
      • 1...Bb8
        • 2.f4#
      • 1...g3
        • 2.fxg3#
      • 1...d4
        • 2.f3#
      • 1...f4
        • 2.f3#
      • 1...Kxd2!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qe1#
      • 1...Kxd2
        • 2.Qb2#
        • 2.Qe1#
      • 1...Kxf2
        • 2.Qe1#
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(G)
    • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(G)
    • B(f);OGATE,P_SPINB(f),XP(D)::QAR1(G),XB(f)
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);OGATE,XP(D)::QAR(G)+P(C),XB(f)
        • Q(h);::QAR(G)+P(C)
        • B(f);::QAR(G)+P(C)
        • P(c);OGATE::QAR(G)+P(C),XP(c)
        • P(d);::QAR(G)+P(C)
        • P(e);::QAR(G)+P(C)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
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