MESON Chess Problem Database

Problem Display
PID: 172492 (8/7p/3P2Np/6k1/4Q3/5K2/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2001

8/7p/3P2Np/6k1/4Q3/5K2/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kh5
      • 2.Qf5#
      • 2.Qg4#
  • Tries
    • 1.Se5?
      • 1...Kh5
        • 2.Qg4#
      • 1...h5
        • 2.Qf4#
      • 1...Kf6!
    • 1.Se7?
      • 1...Kh5
        • 2.Qg4#
      • 1...h5
        • 2.Qf4#
      • 1...Kf6!
    • 1.Sf8?
      • 1...Kh5
        • 2.Qg4#
      • 1...h5
        • 2.Qf4#
      • 1...Kf6!
    • 1.Sh8?
      • 1...Kh5
        • 2.Qg4#
      • 1...h5
        • 2.Qf4#
      • 1...Kf6!
    • 1.Qf4+?
      • 1...Kh5
        • 2.Qg4#
        • 2.Qf5#
      • 1...Kxg6!
    • 1.Qe7+?
      • 1...Kf5
        • 2.Sh4#
      • 1...Kh5
        • 2.Sf4#
      • 1...Kxg6!
  • Keys
    • 1.Sh4!
      • 1...Kh5
        • 2.Qg4#
      • 1...Kf6
        • 2.Qe7#
      • 1...h5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XS(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::S(D)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Vars
      • K(a);P-FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);SBLOCK::QAB1(B)
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