MESON Chess Problem Database

Problem Display
PID: 52868 (N1Q5/K1P2r2/1B1pRn2/Np1k1b2/5P2/1rnq4/6R1/7B w - - 0 1)

Mathot, Georges

2nd HM., Dziennik Lodzki, 1948

N1Q5/K1P2r2/1B1pRn2/Np1k1b2/5P2/1rnq4/6R1/7B

#2

10 + 9

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1948

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Rd2#
    • 1...Qf1
      • 2.Rd2#
    • 1...Qc2
      • 2.Rd2#
    • 1...Qc4
      • 2.Rd2#
    • 1...Qe4
      • 2.Rd2#
    • 1...Qd1
      • 2.Rd2#
    • 1...Qd2
      • 2.Rxd2#
    • 1...Qe3
      • 2.Rd2#
    • 1...Qg3
      • 2.Rd2#
    • 1...Qh3
      • 2.Rd2#
    • 1...Rxc7+
      • 2.Sxc7#
    • 1...Bh3
      • 2.Rg5#
    • 1...Be4
      • 2.Rg5#
    • 1...Bxe6
      • 2.Rg5#
      • 2.Qb7#
    • 1...Bg6
      • 2.Rg5#
    • 1...Bh7
      • 2.Rg5#
  • Tries
    • 1.Rd2+?
      • 1...Be4
        • 2.Rxd3#
      • 1...Sfe4
        • 2.Rxd3#
      • 1...Sce4!
    • 1.Rg5+?
      • 1...Qe4
        • 2.Rxf5#
      • 1...Qf3
        • 2.Rxf5#
      • 1...Sce4
        • 2.Rxf5#
      • 1...Sfe4!
    • 1.Re7?
      • threat
        • 2.Qb7#
      • 1...Bxc8
        • 2.Rg5#
      • 1...Qc4
        • 2.Rd2#
        • 2.Qxf5#
      • 1...Bd7
        • 2.Rg5#
      • 1...Rxe7!
  • Keys
    • 1.Re3!
      • threat
        • 2.Qb7#
      • 1...Rxc7+
        • 2.Sxc7#
      • 1...Qxe3
        • 2.Rd2#
      • 1...Bxc8
        • 2.Rg5#
      • 1...Qc4
        • 2.Rd2#
        • 2.Qxf5#
      • 1...Qe4
        • 2.Rd2#
      • 1...Be4
        • 2.Rg5#
      • 1...Bd7
        • 2.Rg5#
      • 1...Sce4
        • 2.Qxf5#
      • 1...Sfe4
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 11
  • Sets
    • Q(c);::B(A)+R(B),DCHECK
    • Q(c);S_CUTB(f),S_CUTS(b),S_CUTS(h)::R(B)
    • Q(c);::B(A)+R(B),DCHECK,XQ(c)
    • Q(c);P_PINB(E)::B(A)+R(B),DCHECK
    • R(i);CHECK,XP(H)::S(I),XR(i)
    • B(f);::B(A)+R(B),DCHECK
    • B(f);S_CUTQ(c),S_CUTQ(c),S_CUTS(b),S_CUTS(h)::R(B)
  • Tries
    • Try
      • R(B);CHECK,P_PINQ(c)
      • Vars
        • B(f);P_SPINB(f)::R(B),XQ(c)
        • S(h);P_SPINS(h)::R(B),XQ(c)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(B);CHECK,P_PINB(f)
      • Vars
        • Q(c);P_SPINQ(c)::R(B),XB(f)
        • S(b);P_SPINS(b)::R(B),XB(f)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • R(F);N_SPINP(H)
      • Threat
        • QAB(J)
      • Vars
        • B(f);XQ(J)::B(A)+R(B),DCHECK
        • B(f);::B(A)+R(B),DCHECK
      • Refutation
        • R(i);P_PINP(H),XR(F)
  • Actual
    • R(F);
    • Threat
      • QAB(J)
    • Vars
      • R(i);CHECK,XP(H)::S(I),XR(i)
      • Q(c);P_PINB(E),XR(F)::B(A)+R(B),DCHECK
      • B(f);XQ(J)::B(A)+R(B),DCHECK
      • Q(c);S_CUTB(f),S_CUTS(b),S_CUTS(h)::R(B)
      • B(f);S_CUTQ(c),S_CUTS(b),S_CUTS(h)::R(B)
      • B(f);N_PINP(H)::B(A)+R(B),DCHECK
      • S(b);S_CUTQ(c)::QAR2(J),XB(f)
      • S(h);SBLOCK,S_CUTB(f)::R(F),XQ(c)
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