MESON Chess Problem Database

Problem Display
PID: 238572 (3KB3/4R3/8/2Bk1p1r/1Ppp1pp1/4P1b1/1q2N3/3N2Qb w - - 0 1)

Labai, Zoltan

4th HM., Problemist Ukraini, 2012

3KB3/4R3/8/2Bk1p1r/1Ppp1pp1/4P1b1/1q2N3/3N2Qb

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Sxf4#
    • 1...Bf2
      • 2.Sxf4#
    • 1...Bh4
      • 2.Sxf4#
  • Tries
    • 1.exd4?
      • threat
        • 2.Re5#
      • 1...Qxd4
        • 2.Qxd4#
      • 1...Qxe2
        • 2.Sc3#
      • 1...f3
        • 2.Se3#
      • 1...Bh4
        • 2.Sxf4#
      • 1...c3!
  • Keys
    • 1.exf4!
      • threat
        • 2.Re5#
      • 1...Qxe2
        • 2.Qxd4#
      • 1...Bxf4
        • 2.Sxf4#
      • 1...c3
        • 2.Qxd4#
      • 1...Bh4
        • 2.Qxh1#
      • 1...d3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::S(C),XP(f)
    • B(c);N_GUARD,P_PINR(G)::S(C),XP(f)
  • Tries
    • Try
      • P(D);XP(e)
      • Threat
        • R1(G)
      • Vars
        • Q(b);OGATE,XP(D)::QAR1(B),XQ(b)
        • Q(b);N_GUARD,XS(C)::S(A)
        • P(f);N_GUARD::S(A)
        • B(c);N_GUARD,P_PINR(G)::S(C),XP(f)
      • Refutation
        • P(d);
  • Actual
    • P(D);XP(f)
    • Threat
      • R1(G)
    • Vars
      • Q(b);N_GUARD,XS(C)::QAR1(B),XP(e)
      • B(c);XP(D)::S(C),XB(c)
      • P(d);S_CUTQ(b)::QAR1(B),XP(e)
      • B(c);P_PINR(G),S_CUTR(j)::QAB(B),XB(a)
      • P(e);N_GUARD::S(A)
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