MESON Chess Problem Database

Problem Display
PID: 74918 (8/nQ1p3r/N7/3Ppp2/P1k2P2/Kp6/nBbR4/8 w - - 0 1)

Golha, Jan

Pravda (Bratislava), 2001

8/nQ1p3r/N7/3Ppp2/P1k2P2/Kp6/nBbR4/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxb3#
    • 1...Bd3
      • 2.Qxb3#
    • 1...Be4
      • 2.Qxb3#
    • 1...Sc1
      • 2.Qb4#
    • 1...Sc3
      • 2.Qb4#
    • 1...Sb4
      • 2.Qxb4#
    • 1...Sb5+
      • 2.Qxb5#
    • 1...Sc6
      • 2.Qb5#
    • 1...Sc8
      • 2.Qxc8#
      • 2.Qb5#
      • 2.Qc7#
    • 1...exf4
      • 2.Rd4#
    • 1...e4
      • 2.Rd4#
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qc5#
      • 1...Sb5+
        • 2.Qxb5#
      • 1...d6!
    • 1.Qxa7?
      • threat
        • 2.Qc5#
        • 2.Qc7#
      • 1...Bd3
        • 2.Qc5#
      • 1...Rh6
        • 2.Qc5#
      • 1...Sb4
        • 2.Qc5#
      • 1...d6!
    • 1.fxe5?
      • threat
        • 2.Rd4#
      • 1...Sb5+
        • 2.Qxb5#
      • 1...Bd3
        • 2.Qxb3#
      • 1...Sc3
        • 2.Qb4#
      • 1...Sc6
        • 2.Qb5#
      • 1...Rh4!
  • Keys
    • 1.d6!
      • threat
        • 2.Qd5#
      • 1...Sb5+
        • 2.Qxb5#
      • 1...Bd3
        • 2.Qxb3#
      • 1...Be4
        • 2.Qxb3#
      • 1...Sc3
        • 2.Qb4#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sc6
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • B(b);N_GUARD::QAB1(H),XP(c)
    • S(a);N_GUARD::QAR1(H)
    • S(a);N_GUARD::QAR1(H),XS(a)
    • S(g);CHECK,N_GUARD::QAB1(H),XS(g)
    • S(g);N_GUARD::QAB1(H)
    • P(e);N_GUARD,XP(E)::R1(B)
    • P(e);N_GUARD::R1(B)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • S(g);CHECK,N_GUARD::QAB1(H),XS(g)
      • Refutation
        • P(h);
    • Try
      • Q(H);XS(g)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::QAR1(H)
        • R(i);::QAR1(H)
        • S(a);::QAR1(H)
      • Refutation
        • P(h);
    • Try
      • P(E);XP(e)
      • Threat
        • R1(B)
      • Vars
        • S(g);CHECK,N_GUARD::QAB1(H),XS(g)
        • B(b);N_GUARD::QAB1(H),XP(c)
        • S(a);N_GUARD::QAR1(H)
        • S(g);N_GUARD::QAB1(H)
      • Refutation
        • R(i);
  • Actual
    • P(F);
    • Threat
      • QAB1(H)
    • Vars
      • S(g);CHECK,N_GUARD::QAB1(H),XS(g)
      • B(b);N_GUARD::QAB1(H),XP(c)
      • S(a);N_GUARD::QAR1(H)
      • S(a);N_GUARD::QAR1(H),XS(a)
      • S(g);N_GUARD::QAB1(H)
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