MESON Chess Problem Database

Problem Display
PID: 55339 (K4Q2/pB5p/4NR2/4k2n/3p4/6Nb/8/2B2q2 w - - 0 1)

Mazul, Waldemar

1st Prize, Troll, 2001-2002

K4Q2/pB5p/4NR2/4k2n/3p4/6Nb/8/2B2q2

#2

7 + 7

56 The Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Bb2#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qd6#
      • 1...Sxf6
        • 2.Qb8#
      • 1...Be6
        • 2.Rxe6#
      • 1...Qa6!
    • 1.Sg7?
      • threat
        • 2.Qd6#
      • 1...Qxf6
        • 2.Qc5#
      • 1...Sxf6
        • 2.Qb8#
      • 1...Be6
        • 2.Rxe6#
      • 1...Qa6!
    • 1.Ba3?
      • threat
        • 2.Bd6#
      • 1...Qxf6
        • 2.Qd6#
      • 1...Sxf6
        • 2.Qd6#
      • 1...Qa6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qd6#
      • 1...Qxf6
        • 2.Qc5#
      • 1...Sxf6
        • 2.Qb8#
      • 1...Qa6
        • 2.Sf3#
      • 1...Be6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATEB::B(A)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(G)
      • Vars
        • S(e);SBLOCK,XR(D)::QAB(G)
        • B(b);N_GUARD::R1(D),XB(b)
      • Refutation
        • Q(a);
    • Try
      • S(C);
      • Threat
        • QAB1(G)
      • Vars
        • Q(a);SBLOCK,XR(D)::QAR2(G)
        • S(e);SBLOCK,XR(D)::QAB(G)
        • B(b);N_GUARD::R1(D),XB(b)
      • Refutation
        • Q(a);
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • Q(a);SBLOCK,XR(D)::QAB1(G)
        • S(e);SBLOCK,XR(D)::QAB1(G)
      • Refutation
        • Q(a);
  • Actual
    • S(C);
    • Threat
      • QAB1(G)
    • Vars
      • Q(a);SBLOCK,XR(D)::QAR2(G)
      • S(e);SBLOCK,XR(D)::QAB(G)
      • Q(a);N_GUARD::S(C)
      • B(b);N_GUARD::R1(D),XB(b)
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