MESON Chess Problem Database

Problem Display
PID: 87760 (1Qn5/1b6/2p5/P1kp4/BR2pn2/1PB5/8/7K w - - 0 1)

Rosolak, Wladislaw

Comm., Polish Championship, 1996

1Qn5/1b6/2p5/P1kp4/BR2pn2/1PB5/8/7K

#2

7 + 7

16307 Rozmaitosci Szachowe 1996
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Bd4#
    • 1...Ba8
      • 2.Bd4#
    • 1...Sb6
      • 2.Qf8#
    • 1...Sd6
      • 2.Qa7#
    • 1...Sa7
      • 2.Qf8#
  • Tries
    • 1.Qe5?
      • threat
        • 2.Rc4#
      • 1...Sb6
        • 2.Qe7#
      • 1...Sd6
        • 2.Qd4#
      • 1...Ba6!
    • 1.Qxb7?
      • threat
        • 2.Qxc6#
      • 1...Sa7
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...Kd6!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Rb5#
      • 1...Ba6
        • 2.Qxc6#
      • 1...Sd6
        • 2.Qb6#
      • 1...Sa7
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • B(f);::B(C)
    • S(g);OGATE::QAB(G)
    • S(g);N_GUARD,SBLOCK::QAB(G)
  • Tries
    • Try
      • Q(G);P_PINP(d)
      • Threat
        • R1(E)
      • Vars
        • S(g);N_GUARD::QAB(G)
        • S(g);SBLOCK::QAB1(G)
      • Refutation
        • B(f);
    • Try
      • Q(G);XB(f)
      • Threat
        • QAR1(G),XP(e)
      • Vars
        • S(g);N_GUARD::QAB(G)
        • S(g);N_GUARD::QAB(G),XS(g)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(G);P_PINP(e)
    • Threat
      • R1(E)
    • Vars
      • B(f);N_GUARD::QAR1(G),XP(e)
      • S(g);N_GUARD,SBLOCK::QAB1(G)
      • S(g);N_GUARD::QAB(G)
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