MESON Chess Problem Database

Problem Display
PID: 75179 (8/1p6/1K2RQ2/8/1P1NB3/b1k1N3/prp5/BbR5 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Shavirin, Valery Mikhailovich

2nd Prize, Birnov MT, 2000

8/1p6/1K2RQ2/8/1P1NB3/b1k1N3/prp5/BbR5

#2

9 + 7

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5+?
      • 1...Kd2
        • 2.Qg5#
        • 2.Qf4#
        • 2.Qh6#
      • 1...Kc4!
    • 1.Rxc2+?
      • 1...Kxb4
        • 2.Rc4#
      • 1...Bxc2!
    • 1.Qg5?
      • 1...Kd2
        • 2.Sd5#
      • 1...Kxb4
        • 2.Qa5#
      • 1...Kxd4
        • 2.Qc5#
      • 1...Bxb4!
  • Keys
    • 1.Qf1!
      • 1...Kd2
        • 2.Qe1#
      • 1...Kxb4
        • 2.Qc4#
      • 1...Kxd4
        • 2.Qd3#
      • 1...Bxb4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(f);N_SPINR(c),P-FLIGHT
    • Try
      • R(B);CHECK,XP(d)
      • Vars
        • K(f);N_SPINR(c),OGATE,S_FLIGHT,XP(D)::R1(B)
      • Refutation
        • B(a);XR(B)
    • Try
      • Q(I);
      • Vars
        • K(f);N_SPINP(d),N_SPINR(c),S_FLIGHT::QAB(I)+S(C)
        • K(f);N_SPINP(d),N_SPINR(c),OGATEB,S_FLIGHT,XP(D)::QAB1(I)
        • K(f);N_SPINP(d),S_FLIGHT,XS(E)::QAB1(I)
      • Refutation
        • B(e);XP(D)
  • Actual
    • Q(I);
    • Vars
      • K(f);N_SPINP(d),N_SPINR(c),S_FLIGHT::QAB1(I)
      • K(f);N_SPINP(d),N_SPINR(c),S_FLIGHT,XP(D)::QAR1(I)
      • K(f);N_SPINP(d),S_FLIGHT,XS(E)::QAR1(I)
      • B(e);SBLOCK,XP(D)::QAR1(I)
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