MESON Chess Problem Database

Problem Display
PID: 142206 (8/2Pp1p2/1K2k2r/8/1B2NP2/2P1N1P1/b1B3Qb/4R2r w - - 0 1)

Fux, Janusz

British Chess Magazine, 1935

8/2Pp1p2/1K2k2r/8/1B2NP2/2P1N1P1/b1B3Qb/4R2r

#2

11 + 7

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Sg5#
    • 1...d5
      • 2.c8Q#
      • 2.c8B#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sg5#
      • 1...Kxd5+
        • 2.Sd6#
      • 1...Kf5+
        • 2.Sef6#
      • 1...Bg1+
        • 2.Sf2#
      • 1...d6
        • 2.Sc5#
      • 1...Bxd5!
    • 1.Bb3+?
      • 1...d5
        • 2.c8Q#
        • 2.c8B#
      • 1...Bxb3!
    • 1.Qh3+?
      • 1...f5
        • 2.Qxf5#
      • 1...Rxh3!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sg5#
      • 1...Kd5+
        • 2.Sd6#
      • 1...Kf5+
        • 2.Sef6#
      • 1...Bg1+
        • 2.Sef2#
      • 1...d6
        • 2.Sc5#
      • 1...d5
        • 2.c8Q#
        • 2.c8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(e);SBLOCK::S(H)
    • P(f);::P=Q
  • Tries
    • Try
      • S(E);
      • Threat
        • R(A)+S(H),DCHECK
      • Vars
        • K(d);CHECK,S_FLIGHT,XS(E)::QAB(C)+S(H)
        • K(d);CHECK,S_FLIGHT::B(B)+S(H)
        • B(c);CHECK,S_CUTR(a)::R(A)+S(H)
        • P(f);SBLOCK::R(A)+S(H),DCHECK
      • Refutation
        • B(b);XS(E)
    • Try
      • B(B);CHECK
      • Vars
        • P(f);P_SPINP(f),S_CUTB(b)::P=Q
      • Refutation
        • B(b);XB(B)
    • Try
      • Q(C);CHECK
      • Vars
        • P(g);P_SPINP(g)::QAB1(C),XP(g)
      • Refutation
        • R(e);XQ(C)
  • Actual
    • S(E);
    • Threat
      • R(A)+S(H),DCHECK
    • Vars
      • K(d);CHECK,S_FLIGHT::QAB(C)+S(H)
      • K(d);CHECK,S_FLIGHT::B(B)+S(H)
      • B(c);CHECK,S_CUTR(a)::R(A)+S(H)
      • P(f);SBLOCK::R(A)+S(H),DCHECK
      • P(f);SBLOCK::P=Q
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