MESON Chess Problem Database

Problem Display
PID: 151399 (1b6/n7/2Q5/kp6/8/8/8/1R5K w - - 0 1)

de Haas, Bastian Evert

3rd HM., StrateGems 03. Miniature Ty., 2012

1b6/n7/2Q5/kp6/8/8/8/1R5K

#2

3 + 4

102 Probleemblad 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qa6#
    • 1...Sc8
      • 2.Qxb5#
    • 1...b4
      • 2.Ra1#
  • Tries
    • 1.Rxb5+?
      • 1...Ka4
        • 2.Qa6#
      • 1...Sxb5!
    • 1.Qc5?
      • threat
        • 2.Ra1#
      • 1...Ka4
        • 2.Qb4#
      • 1...Be5
        • 2.Qxa7#
      • 1...Ka6!
    • 1.Qb6+?
      • 1...Ka4
        • 2.Qa6#
      • 1...Kxb6!
  • Keys
    • 1.Qb7!
      • 1...Ka4
        • 2.Qa6#
      • 1...Bh2
        • 2.Qxa7#
      • 1...Bg3
        • 2.Qxa7#
      • 1...Bf4
        • 2.Qxa7#
      • 1...Be5
        • 2.Qxa7#
      • 1...Bd6
        • 2.Qxa7#
      • 1...Bc7
        • 2.Qxa7#
      • 1...Sc6
        • 2.Qxb5#
      • 1...Sc8
        • 2.Qxb5#
      • 1...b4
        • 2.Ra1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,P_SPINP(b)::QAR2(C)
    • S(c);N_GUARD::QAR1(C),XP(b)
    • P(b);SBLOCK::R(A)
  • Tries
    • Try
      • R(A);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • S(c);XR(A)
    • Try
      • Q(C);P_PINP(b)
      • Threat
        • R(A)
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
        • B(d);N_GUARD::QAR2(C),XS(c)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • B(d);N_GUARD::QAR2(C),XS(c)
      • S(c);N_GUARD::QAR1(C),XP(b)
      • P(b);::R(A)
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