MESON Chess Problem Database

Problem Display
PID: 6202 (3b1r2/2k1pb1R/8/P1N1N3/3K4/3Q3B/7B/2R5 w - - 0 1)

Adabashev, Mark Ivanovich

64 Shakhmatnoe obozrenie, 1928

3b1r2/2k1pb1R/8/P1N1N3/3K4/3Q3B/7B/2R5

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Se4#
      • 2.Sb7#
  • Tries
    • 1.Sa6+?
      • 1...Kd6
        • 2.Sxf7#
        • 2.Rc6#
        • 2.Qa3#
      • 1...Kb7!
    • 1.Sf3+?
      • 1...Kc6
        • 2.Bd7#
      • 1...e5+!
    • 1.Sc4+?
      • 1...Kc6
        • 2.Bd7#
      • 1...e5+!
    • 1.Sc6+?
      • 1...Kxc6
        • 2.Bd7#
      • 1...e5+!
    • 1.Sg6+?
      • 1...Kc6
        • 2.Bd7#
      • 1...e5+!
    • 1.Sed7+?
      • 1...Kc6
        • 2.Sb8#
      • 1...Kc8
        • 2.Sb6#
        • 2.Qa6#
      • 1...e5+!
    • 1.Sxf7+?
      • 1...Kc6
        • 2.Bg2#
        • 2.Bd7#
      • 1...e5+!
    • 1.Qb5?
      • threat
        • 2.Qb6#
      • 1...Kd6
        • 2.Se4#
        • 2.Sb7#
        • 2.Sc4#
        • 2.Sxf7#
        • 2.Qc6#
        • 2.Qd7#
      • 1...e6
        • 2.Se4#
      • 1...Be6!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qb6#
      • 1...Kb8
        • 2.Scd7#
        • 2.Sc6#
        • 2.Sed7#
        • 2.Qb7#
      • 1...Be6
        • 2.Sf7#
      • 1...e6
        • 2.Scd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(a);P-FLIGHT::B(D)
      • Refutation
        • P(b);CHECK,P_SPINB(c),P_SPINP(b)
    • Try
      • S(H);CHECK
      • Vars
        • K(a);P-FLIGHT::B(D)
      • Refutation
        • P(b);CHECK,P_SPINB(c),P_SPINP(b)
    • Try
      • S(H);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(H)::B(D)
      • Refutation
        • P(b);CHECK,P_SPINB(c),P_SPINP(b)
    • Try
      • S(H);CHECK
      • Vars
        • K(a);P-FLIGHT::B(D)
      • Refutation
        • P(b);CHECK,P_SPINB(c),P_SPINP(b)
    • Try
      • S(H);CHECK
      • Vars
        • K(a);P-FLIGHT::S(H)
      • Refutation
        • P(b);CHECK,P_SPINP(b)
    • Try
      • S(H);CHECK,XB(c)
      • Refutation
        • P(b);CHECK,P_SPINP(b)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • P(b);P_SPINB(c)::R(A)+S(G)
      • Refutation
        • B(c);P_SPINP(b)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • B(c);P_SPINP(b)::B(B)+S(H)
      • P(b);P_SPINB(c)::R(A)+S(G)
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