MESON Chess Problem Database

Problem Display
PID: 221897 (R2bR2K/3k3N/Pp1pn1p1/1p1Q2p1/1P1p2P1/3b4/2p1p3/8 w - - 0 1)

Bennett, Frederick

British Chess Magazine, 1929

R2bR2K/3k3N/Pp1pn1p1/1p1Q2p1/1P1p2P1/3b4/2p1p3/8

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Kc7
      • 2.Qb7#
    • 1...Kxe8
      • 2.Qxe6#
    • 1...Bc7
      • 2.Sf6#
    • 1...Sc7
      • 2.Raxd8#
  • Tries
    • 1.Sf6+?
      • 1...Kc7
        • 2.Qb7#
      • 1...Bxf6+!
    • 1.Ra7+?
      • 1...Kc8
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kxe8
        • 2.Qc6#
      • 1...Bc7
        • 2.Sf6#
      • 1...Sc7!
    • 1.Raxd8+?
      • 1...Kc7
        • 2.Qb7#
        • 2.Qxd6#
      • 1...Sxd8!
    • 1.Qxe6+?
      • 1...Kc7
        • 2.Rc8#
        • 2.Qc8#
      • 1...Kc6!
    • 1.Qb7+?
      • 1...Bc7
        • 2.Sf6#
      • 1...Sc7
        • 2.Raxd8#
      • 1...Kxe8!
    • 1.Qxd6+?
      • 1...Kxe8
        • 2.Qxe6#
      • 1...Kxd6!
  • Keys
    • 1.Rc8!
      • threat
        • 2.Qc6#
        • 2.Qxe6#
      • 1...Bf6+
        • 2.Sxf6#
      • 1...Kxc8
        • 2.Qb7#
      • 1...Kxe8
        • 2.Qxe6#
      • 1...c1Q
        • 2.Qxe6#
      • 1...c1R
        • 2.Qxe6#
      • 1...e1Q
        • 2.Qc6#
      • 1...e1R
        • 2.Qc6#
      • 1...Bc4
        • 2.Qc6#
      • 1...Be4
        • 2.Qxe6#
      • 1...Bf5
        • 2.Qc6#
      • 1...Bc7
        • 2.Sf6#
      • 1...Be7
        • 2.Qc6#
      • 1...Sf4
        • 2.Qc6#
      • 1...Sc5
        • 2.Qc6#
      • 1...Sc7
        • 2.Rcxd8#
      • 1...Sg7
        • 2.Qc6#
      • 1...Sf8
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 1
  • Sets
    • K(k);N_SPINP(h),P-FLIGHT::QAR1(C)
    • K(k);N_SPINP(h),P_SPINB(l),S_FLIGHT,XR(G)::QAR2(C),XS(i)
    • B(l);N_GUARD,SBLOCK::S(E)
    • S(i);N_GUARD,SBLOCK::R1(F),XB(l)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(k);N_SPINP(h),P-FLIGHT::QAR1(C)
      • Refutation
        • B(l);CHECK,XS(E)
    • Try
      • R(F);CHECK
      • Vars
        • K(k);N_SPINP(h),S_FLIGHT,XR(G)::QAB(C)
        • B(l);P_SPINB(l)::S(E)
      • Refutation
        • S(i);P_SPINS(i)
    • Try
      • R(F);CHECK,XB(l)
      • Refutation
        • S(i);XR(F)
    • Try
      • Q(C);CHECK,N_PINP(h),XS(i)
      • Refutation
        • K(k);P_SPINP(h),S_FLIGHT
    • Try
      • Q(C);CHECK,N_PINP(h)
      • Vars
        • B(l);P_SPINB(l)::S(E)
        • S(i);P_SPINS(i)::R1(F),XB(l)
      • Refutation
        • K(k);P_SPINB(l),S_FLIGHT,XR(G)
    • Try
      • Q(C);CHECK,XP(h)
      • Vars
        • K(k);P_SPINB(l),S_FLIGHT,XR(G)::QAR2(C),XS(i)
      • Refutation
        • K(k);P-FLIGHT,XQ(C)
  • Actual
    • R(F);
    • Threat
      • DUALS(2)
    • Vars
      • B(l);CHECK,N_GUARD::S(E),XB(l)
      • K(k);N_SPINP(h),P_SPINB(l),S_FLIGHT,XR(F)::QAB1(C)
      • K(k);N_SPINP(h),P_SPINB(l),S_FLIGHT,XR(G)::QAR2(C),XS(i)
      • P(a);::QAB1(C),XS(i)
      • P(b);::QAB1(C)
      • B(c);::QAB1(C)
      • B(c);::QAB1(C),XS(i)
      • B(l);N_GUARD::S(E)
      • B(l);::QAB1(C)
      • S(i);::QAB1(C)
      • S(i);N_GUARD,SBLOCK::R1(F),XB(l)
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