MESON Chess Problem Database

Problem Display
PID: 18678 (7B/3P3K/q4R2/p2pN3/P1Nkp3/Q1p5/2R2P2/4rb1B w - - 0 1)

Fleck, Ferenc

1st HM., Problem 018. TT, 1957

7B/3P3K/q4R2/p2pN3/P1Nkp3/Q1p5/2R2P2/4rb1B

#2

11 + 8

3976 FIDE Album (1956-1958) 1961

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.fxe3#
    • 1...e3
      • 2.Rf4#
  • Tries
    • 1.Sf3+?
      • 1...Kd3
        • 2.Qxc3#
      • 1...Kxc4
        • 2.Rxc3#
        • 2.Qxc3#
      • 1...exf3!
    • 1.Sc6+?
      • 1...Kd3
        • 2.Qxc3#
      • 1...Kxc4
        • 2.Rxc3#
        • 2.Qxc3#
      • 1...Qxc6!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qxc3#
      • 1...Kxd3
        • 2.Qxc3#
      • 1...Kxc4
        • 2.Qxc3#
      • 1...Qxc4
        • 2.Rf3#
      • 1...Bxd3
        • 2.Rc6#
      • 1...exd3
        • 2.Rf4#
      • 1...dxc4
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(a);OGATE::P(C),XR(a)
    • P(e);OGATEB::R(H)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINP(c)::QAR1(D),XP(c)
      • Refutation
        • P(e);XS(G)
    • Try
      • S(G);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINP(c)::QAR1(D),XP(c)
      • Refutation
        • Q(h);XS(G)
  • Actual
    • S(G);
    • Threat
      • QAB1(D),XP(c)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(c),XS(G)::QAR1(D),XP(c)
      • K(d);P-FLIGHT,P_SPINP(c),XS(F)::QAR1(D),XP(c)
      • Q(h);N_GUARD,SBLOCK,XS(F)::B(K)+R(H)
      • B(b);SBLOCK,XS(G)::B(K)+R(H)
      • P(e);SBLOCK,XS(G)::B(K)+R(H),DCHECK
      • P(g);SBLOCK,XS(F)::B(K)+R(H),DCHECK
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