MESON Chess Problem Database

Problem Display
PID: 164202 (7b/4N3/4PkN1/8/6Q1/4K3/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1996

7b/4N3/4PkN1/8/6Q1/4K3/8/8

#2

5 + 2

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Sd5#
      • 2.Sg8#
      • 2.Qf5#
  • Tries
    • 1.Kd2?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Ke2?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Kf2?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Kd3?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Kf3?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Kd4?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Ke4?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Kf4?
      • 1...Bg7
        • 2.Sd5#
        • 2.Sg8#
        • 2.Qf5#
      • 1...Kg7!
    • 1.Qh5?
      • threat
        • 2.Qe5#
      • 1...Kg7
        • 2.Qxh8#
      • 1...Kxe6!
    • 1.Qd4+?
      • 1...Kg5
        • 2.Qh4#
      • 1...Kxe6!
    • 1.Qe4?
      • threat
        • 2.Qe5#
      • 1...Kg5
        • 2.Qh4#
      • 1...Kg7!
    • 1.Qh4+?
      • 1...Kg7
        • 2.Qxh8#
      • 1...Kxe6!
  • Keys
    • 1.Qh3!
      • 1...Kg5
        • 2.Qh4#
      • 1...Kg7
        • 2.Qxh8#
      • 1...Bg7
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B),XB(b)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B),XB(b)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAB1(B),XB(b)
      • B(b);SBLOCK::QAR1(B)
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