MESON Chess Problem Database

Problem Display
PID: 245132 (b5K1/2p3n1/3N4/n2k3p/BP1q4/1P4B1/4R1Nr/2R4Q w - - 0 1)

Labai, Zoltan

Scacchi e Scienze Applicate, 1999

b5K1/2p3n1/3N4/n2k3p/BP1q4/1P4B1/4R1Nr/2R4Q

#2

10 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Rxd1#
      • 2.Qxd1#
    • 1...Sb7
      • 2.Bc6#
    • 1...Se6
      • 2.Se3#
    • 1...cxd6
      • 2.Sf4#
  • Keys
    • 1.Qd1!
      • threat
        • 2.Rc5#
      • 1...Qxd1
        • 2.Rxd1#
      • 1...Sxb3
        • 2.Bxb3#
      • 1...cxd6
        • 2.Sf4#
      • 1...Qd2
        • 2.Qxd2#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Sc4
        • 2.bxc4#
      • 1...Sb7
        • 2.Bc6#
      • 1...Se6
        • 2.Se3#
      • 1...c5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD,S_CUTB(h)::B(G)
    • S(g);SBLOCK::QAB(B)+S(D),DCHECK
    • P(f);SBLOCK,XS(I)::QAB(B)+S(D),DCHECK
  • Actual
    • Q(B);P_PINQ(b)
    • Threat
      • R1(A)
    • Vars
      • Q(b);N_SPINQ(b),OGATE,XQ(B)::R(A),XQ(b)
      • S(c);OGATE,XP(E)::B(G),XS(c)
      • P(f);SBLOCK,XS(I)::S(D)
      • Q(b);OGATEB::QAR(B),XQ(b)
      • Q(b);OGATEB::QAR2(B),XQ(b)
      • S(c);OGATE::P(E),XS(c)
      • S(c);N_GUARD,S_CUTB(h)::B(G)
      • S(g);SBLOCK::S(D)
      • P(f);::R1(A),XP(f)
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