MESON Chess Problem Database

Problem Display
PID: 120652 (8/1p2bp2/1P2pN2/4k3/1r1N3P/Bp2K3/1P6/2Q2R2 w - - 0 1)

Legentil, Georges

Problemes d'Echecs (Legentil), 1951

8/1p2bp2/1P2pN2/4k3/1r1N3P/Bp2K3/1P6/2Q2R2

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qc7#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bxf6
      • 2.Qc5#
    • 1...Bd8
      • 2.Qc5#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Qf4#
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kd6
        • 2.Qc7#
      • 1...Rxd4
        • 2.Qg5#
      • 1...Bxf6!
    • 1.Kd3?
      • threat
        • 2.Qf4#
      • 1...Kd6
        • 2.Qc7#
      • 1...Bxf6
        • 2.Qc5#
      • 1...Rxd4+!
    • 1.Sc6+?
      • 1...Kd6
        • 2.Bxb4#
        • 2.Rd1#
      • 1...bxc6!
    • 1.Rf5+?
      • 1...Kd6
        • 2.Sb5#
        • 2.Bxb4#
        • 2.Qc5#
        • 2.Qc7#
      • 1...exf5!
    • 1.Qc3?
      • 1...Kd6
        • 2.Sb5#
        • 2.Qc7#
      • 1...Rxd4
        • 2.Qxd4#
      • 1...Rxb6
        • 2.Sc2#
        • 2.Se2#
        • 2.Sxb3#
        • 2.Sb5#
        • 2.Sf5#
        • 2.Sc6#
      • 1...Bxf6
        • 2.Qc5#
      • 1...Ra4
        • 2.Sc6#
      • 1...Rc4
        • 2.Sc6#
      • 1...Rb5
        • 2.Sc2#
        • 2.Se2#
        • 2.Sxb3#
        • 2.Sxb5#
        • 2.Sf5#
        • 2.Sc6#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bd6
        • 2.Sc6#
      • 1...Bd8
        • 2.Qc5#
      • 1...Bf8!
  • Keys
    • 1.Kf3!
      • threat
        • 2.Qf4#
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kxf6
        • 2.Qg5#
      • 1...Rxd4
        • 2.Qg5#
      • 1...Bxf6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(c);P_SPINR(b),S_FLIGHT::QAB1(A)
    • B(f);N_GUARD,P_PINS(F)::QAR2(A),XB(f)
    • B(f);N_GUARD,XS(I)::QAR2(A)
    • B(f);N_GUARD::QAR2(A)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
        • K(c);P_SPINR(b),S_FLIGHT::QAB1(A)
        • R(b);SBLOCK,XS(F)::QAR2(A)
      • Refutation
        • B(f);XS(I)
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P_SPINR(b),S_FLIGHT::QAB1(A)
        • B(f);N_GUARD,XS(I)::QAR2(A)
      • Refutation
        • R(b);CHECK,XS(F)
    • Try
      • S(F);CHECK
      • Refutation
        • P(e);XS(F)
    • Try
      • R(B);CHECK
      • Refutation
        • P(d);XR(B)
    • Try
      • Q(A);
      • Vars
        • R(b);OGATE,P_SPINR(b),XS(F)::QAB1(A),XR(b)
        • B(f);N_GUARD,XS(I)::QAR2(A)
        • R(b);::QAB(A)+S(F),DCHECK
        • B(f);N_GUARD,P_PINS(F)::QAR2(A),XB(f)
        • B(f);SBLOCK::QAB(A)+S(F),DCHECK
        • B(f);N_GUARD::QAR2(A)
      • Refutation
        • B(f);
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • QAB1(A)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
      • K(c);P_SPINR(b),S_FLIGHT::QAB1(A)
      • K(c);S_FLIGHT,XS(I)::QAB1(A)
      • R(b);SBLOCK,XS(F)::QAR2(A)
      • B(f);N_GUARD,SBLOCK,XS(I)::QAR2(A)
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