MESON Chess Problem Database

Problem Display
PID: 230346 (8/8/8/1P1pkBBK/1P6/7Q/8/8 w - - 0 1)

Romanov, V

Zadachi i Etyudi, 2001

8/8/8/1P1pkBBK/1P6/7Q/8/8

#2

6 + 2

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qh2#
      • 2.Qg3#
  • Tries
    • 1.Bc8?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qh2#
        • 2.Qg3#
      • 1...d4
        • 2.Qe6#
      • 1...Kd4!
    • 1.Qg4?
      • threat
        • 2.Qf4#
      • 1...Kd6
        • 2.Qg3#
        • 2.Qf4#
      • 1...d4!
    • 1.Qc3+?
      • 1...Kd6
        • 2.Qg3#
      • 1...d4
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Qd3?
      • 1...Kd6
        • 2.Qg3#
      • 1...d4!
    • 1.Qe3+?
      • 1...Kd6
        • 2.Bf4#
        • 2.Qf4#
        • 2.Qg3#
        • 2.Qe7#
      • 1...Kxf5!
  • Keys
    • 1.Qb3!
      • 1...Kd4
        • 2.Bf6#
      • 1...Kxf5
        • 2.Qxd5#
      • 1...Kd6
        • 2.Qg3#
      • 1...d4
        • 2.Qe6#

Anticipated by 157269(1881)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(a);SBLOCK::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(A)
        • P(a);OGATEB,P_SPINP(a)::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
    • Try
      • Q(A);
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAB(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT,XB(D)
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::B(E)
      • K(b);P-FLIGHT,XB(D)::QAR2(A),XP(a)
      • K(b);S_FLIGHT::QAB(A)
      • P(a);OGATE,SBLOCK::QAR1(A)
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