MESON Chess Problem Database

Problem Display
PID: 52900 (BQ6/8/4p3/4RpP1/r2k3K/bP1r1p2/N4N1R/6B1 w - - 0 1)

Servais, Albert

La Bataille, 1946

BQ6/8/4p3/4RpP1/r2k3K/bP1r1p2/N4N1R/6B1

#2

10 + 7

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Qd6#
    • 1...Bc1
      • 2.Qd6#
    • 1...Bb2
      • 2.Qd6#
    • 1...Bd6
      • 2.Qxd6#
  • Tries
    • 1.Sd1+?
      • 1...Re3
        • 2.Rd2#
      • 1...f2!
    • 1.Sh1+?
      • 1...Re3
        • 2.Rd2#
      • 1...f2!
    • 1.Sh3+?
      • 1...Re3
        • 2.Rd2#
      • 1...f2!
    • 1.Se4+?
      • 1...Re3
        • 2.Rd2#
      • 1...f2!
    • 1.Sg4+?
      • 1...Re3
        • 2.Rd2#
      • 1...f2!
    • 1.Re4+?
      • 1...Kc5
        • 2.Sxd3#
      • 1...fxe4!
    • 1.Qb6+?
      • 1...Bc5
        • 2.Qxc5#
      • 1...Kxe5+!
    • 1.Qd8+?
      • 1...Bd6
        • 2.Qxd6#
      • 1...Kxe5+!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Qe5#
      • 1...Ke3+
        • 2.Sg4#
      • 1...Kxc5+
        • 2.Se4#
      • 1...Bxc5
        • 2.Qf4#
      • 1...Re3
        • 2.Qd6#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(d);S_CUTB(a)::QAR2(J)
    • B(a);N_GUARD::QAR2(J)
    • B(a);N_GUARD::QAR2(J),XB(a)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • R(b);P_SPINR(b),S_CUTP(c)::R(D)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • S(C);CHECK
      • Vars
        • R(b);P_SPINR(b),S_CUTP(c)::R(D)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • S(C);CHECK
      • Vars
        • R(b);P_SPINR(b),S_CUTP(c)::R(D)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • S(C);CHECK
      • Vars
        • R(b);P_SPINR(b),S_CUTP(c)::R(D)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • S(C);CHECK
      • Vars
        • R(b);P_SPINR(b),S_CUTP(c)::R(D)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • R(G);CHECK
      • Vars
        • K(e);P_PINR(G),S_FLIGHT::B(A)+S(C),DCHECK,XR(b)
      • Refutation
        • P(f);XR(G)
    • Try
      • Q(J);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB1(J),XB(a)
      • Refutation
        • K(e);CHECK,S_FLIGHT,XR(G)
    • Try
      • Q(J);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR2(J),XB(a)
      • Refutation
        • K(e);CHECK,S_FLIGHT,XR(G)
  • Actual
    • R(G);
    • Threat
      • QAB1(J)
    • Vars
      • K(e);CHECK,S_FLIGHT::B(A)+S(C),DCHECK
      • K(e);CHECK,S_FLIGHT,XR(G)::B(A)+S(C),DCHECK
      • B(a);SBLOCK,XR(G)::QAR2(J)
      • R(b);SBLOCK::QAR2(J)
      • P(g);::QAB1(J),XP(g)
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