MESON Chess Problem Database

Problem Display
PID: 206688 (1Q1b2K1/1ppP2R1/2B1kN2/8/3PPn2/1R6/bB6/8 w - - 0 1)

Boros, Sandor

Pesti Naplo, 1925

1Q1b2K1/1ppP2R1/2B1kN2/8/3PPn2/1R6/bB6/8

#2

10 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.d5#
  • Tries
    • 1.Bd5+?
      • 1...Kd6
        • 2.Se8#
        • 2.Ba3#
        • 2.Rb6#
        • 2.e5#
      • 1...Kxf6
        • 2.Qxd8#
      • 1...Sxd5!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Bd5#
      • 1...Kd6+
        • 2.Bd5#
      • 1...Kxf6+
        • 2.d5#
      • 1...bxc6
        • 2.Rxc6#
      • 1...cxb6
        • 2.Qe5#
      • 1...Bd5
        • 2.Bxd5#
      • 1...Sd5
        • 2.Bxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,P_PINR(B),XS(F)::B(A)+P(C)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(F)::QAB(I),XB(f)
      • Refutation
        • S(b);XB(E)
  • Actual
    • R(B);
    • Threat
      • R(B)+B(E),DCHECK
    • Vars
      • K(c);CHECK,P-FLIGHT,P_SPINP(e)::R(B)+B(E)
      • K(c);CHECK,P-FLIGHT,XS(F)::B(A)+P(C)
      • P(d);OGATE,P_SPINP(d),XB(E)::R(B),XP(d)
      • P(e);OGATE,XR(B)::QAR1(I)
      • B(a);::R(B)+B(E),DCHECK,XB(a)
      • S(b);::R(B)+B(E),DCHECK,XS(b)
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