MESON Chess Problem Database

Problem Display
PID: 39125 (2b5/1p1p4/1K6/4k1P1/3N4/8/3Q1BP1/1B6 w - - 0 1)

Slesarenko, Anatoly Vasilevich

The Problemist, 2001

2b5/1p1p4/1K6/4k1P1/3N4/8/3Q1BP1/1B6

#2

7 + 4

15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Bg3#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qd6#
      • 1...d5
        • 2.Qe3#
      • 1...d6
        • 2.Qxd6#
      • 1...Ke6!
    • 1.Sf5?
      • threat
        • 2.Qd6#
      • 1...d5
        • 2.Qe3#
      • 1...d6
        • 2.Qxd6#
      • 1...Ke6!
    • 1.Ba2?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6
        • 2.Sc6#
      • 1...d6
        • 2.Qe3#
      • 1...d5!
    • 1.Qc1?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...d5
        • 2.Qc7#
      • 1...d6!
    • 1.Qc3?
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...d5
        • 2.Bg3#
        • 2.Qg3#
        • 2.Qc7#
      • 1...d6!
    • 1.Qb4?
      • 1...Kf4
        • 2.Sf3#
      • 1...Kd5
        • 2.Qc5#
      • 1...d5
        • 2.Bg3#
      • 1...d6!
    • 1.Qf4+?
      • 1...Kd5
        • 2.Ba2#
      • 1...Kxf4!
    • 1.Qa5+?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kd6
        • 2.Qc5#
      • 1...d5!
  • Keys
    • 1.Qc2!
      • 1...Kf4
        • 2.Qf5#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...d6
        • 2.Qe4#
      • 1...d5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::B(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(B)
      • Vars
        • P(c);SBLOCK::QAR2(B)
        • P(c);::QAB1(B),XP(c)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);
      • Threat
        • QAB1(B)
      • Vars
        • P(c);SBLOCK::QAR2(B)
        • P(c);::QAB1(B),XP(c)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAR(B)+S(E)
        • P(c);SBLOCK::QAR2(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
        • P(c);N_GUARD,SBLOCK::QAB(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR(B)+S(E)
        • K(a);P-FLIGHT::QAR1(B)
        • P(c);SBLOCK::B(C)
      • Refutation
        • P(c);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • P(c);SBLOCK::QAR1(B)
      • P(c);N_GUARD,SBLOCK::QAB(B)
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