MESON Chess Problem Database

Problem Display
PID: 15831 (r3k2r/Pp1npn1p/P4B2/8/8/1Q6/B7/3R1K2 w qk - 0 1)

Lebedinets, E

Rychkov, Vladimir Nikolaevich

Hlas l'udu, 1988

r3k2r/Pp1npn1p/P4B2/8/8/1Q6/B7/3R1K2

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qxf7#
    • 1...Rd8
      • 2.Qxf7#
    • 1...Sc5
      • 2.Qxf7#
    • 1...Sb6
      • 2.Qxf7#
    • 1...Sxf6
      • 2.Qxf7#
    • 1...Sb8
      • 2.Qxf7#
    • 1...Sf8
      • 2.Qxf7#
    • 1...e5
      • 2.Qxf7#
    • 1...0-0
      • 2.Qg3#
    • 1...0-0-0
      • 2.Qxb7#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxe7#
      • 1...Kd8
        • 2.Qxd7#
      • 1...Kf8
        • 2.Qxf7#
      • 1...0-0
        • 2.Qg4#
      • 1...0-0-0
        • 2.Rc1#
      • 1...Sxf6
        • 2.Qxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • K(g);P-FLIGHT::QAR1(D),XS(d)
    • R(f);SBLOCK::QAB1(D),XS(d)
    • S(b);::QAB1(D),XS(d)
    • S(b);XB(F)::QAB1(D),XS(d)
    • P(c);::QAB1(D),XS(d)
    • K(g);0-0,OGATEB,P_SPINS(d)::QAR(D)
    • K(g);0-0-0,OGATEB::QAB1(D),XP(a)
  • Actual
    • Q(D);P_PINP(c)
    • Threat
      • QAR1(D),XP(c)
    • Vars
      • K(g);P-FLIGHT,P_SPINS(b)::QAR1(D),XS(b)
      • K(g);N_SPINP(c),P-FLIGHT::QAR1(D),XS(d)
      • K(g);0-0,N_SPINP(c),OGATEB,P_SPINS(d)::QAR(D)
      • K(g);0-0-0,N_SPINP(c),OGATEB,P_SPINS(b)::R(A)
      • S(b);XB(F)::QAB1(D),XS(d)
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