MESON Chess Problem Database

Problem Display
PID: 171317 (8/8/8/8/1Q6/1P6/4kNPK/3N4 w - - 0 1)

Antipov, Viacheslav Pavlovich

Belevskaya Pravda, 1990

8/8/8/8/1Q6/1P6/4kNPK/3N4

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • 1...Kxf2
        • 2.Qd2#
      • 1...Kxe3!
    • 1.Qd2+?
      • 1...Kf1
        • 2.Se3#
      • 1...Kxd2!
    • 1.g3?
      • 1...Kf3
        • 2.Qe4#
        • 2.Qg4#
      • 1...Kf1!
    • 1.g4?
      • 1...Kf3
        • 2.Qe4#
      • 1...Kf1!
  • Keys
    • 1.Se4!
      • 1...Kxd1
        • 2.Qd2#
      • 1...Kf1
        • 2.Sg3#
      • 1...Kd3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);P-FLIGHT,XS(B)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(F)
    • Try
      • P(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT,XS(A)::QAR1(F)
      • K(a);S_FLIGHT::S(B)
      • K(a);S_FLIGHT::QAB1(F)
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