MESON Chess Problem Database

Problem Display
PID: 86642 (1B6/1PR1p3/PK2P3/R2PPpN1/2Nkp3/1p1p4/1P5p/5B1Q w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Boletim da UBP, 1992

1B6/1PR1p3/PK2P3/R2PPpN1/2Nkp3/1p1p4/1P5p/5B1Q

#2

14 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qxe4#
  • Tries
    • 1.Kb5?
      • 1...Kxd5
        • 2.Rd7#
      • 1...e3
        • 2.Ba7#
      • 1...f4
        • 2.Qxe4#
      • 1...d2!
    • 1.Kc6?
      • 1...Kxc4
        • 2.Ra4#
      • 1...d2
        • 2.Ba7#
      • 1...f4
        • 2.Qxe4#
      • 1...e3!
    • 1.Qf3?
      • threat
        • 2.Qe3#
      • 1...e3
        • 2.Qxe3#
        • 2.Qf4#
      • 1...f4
        • 2.Qxe4#
      • 1...exf3!
    • 1.Qxh2?
      • 1...e3
        • 2.Qf4#
      • 1...d2
        • 2.Qxd2#
      • 1...f4!
  • Keys
    • 1.Ba7!
      • 1...e3
        • 2.Kb5#
      • 1...d2
        • 2.Kc6#
      • 1...f4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD::QAR1(B),XP(e)
  • Tries
    • Try
      • K(J);P-FLIGHT
      • Vars
        • K(d);OGATEB,P-FLIGHT,P_SPINP(e),XP(F)::R(M)
        • P(e);::B(N)
        • P(f);N_GUARD::QAR1(B),XP(e)
      • Refutation
        • P(c);
    • Try
      • K(J);P-FLIGHT
      • Vars
        • K(d);OGATEB,P-FLIGHT,P_SPINP(c),XS(D)::R(E)
        • P(c);::B(N)
        • P(f);N_GUARD::QAR1(B),XP(e)
      • Refutation
        • P(e);
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • P(f);N_GUARD::QAR1(B),XP(e)
      • Refutation
        • P(e);XQ(B)
    • Try
      • Q(B);XP(a)
      • Vars
        • P(e);OGATEB::QAR2(B)
        • P(c);OGATEB::QAR2(B),XP(c)
      • Refutation
        • P(f);
  • Actual
    • B(N);
    • Vars
      • P(e);::B(N)+K(J)
      • P(c);::B(N)+K(J)
      • P(f);N_GUARD::QAR1(B),XP(e)
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