MESON Chess Problem Database

Problem Display
PID: 51287 (5B2/n5p1/8/1P1k4/3pR3/rb2PKp1/pN2QP2/qr5B w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Manchester Guardian, 1956

5B2/n5p1/8/1P1k4/3pR3/rb2PKp1/pN2QP2/qr5B

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bc2
      • 2.Qc4#
    • 1...Ba4
      • 2.Qc4#
    • 1...Bc4
      • 2.Qxc4#
    • 1...Sxb5
      • 2.Qxb5#
    • 1...dxe3
      • 2.Qd3#
    • 1...d3
      • 2.Qxd3#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Re5#
      • 1...dxe3
        • 2.Qd3#
      • 1...g5+!
    • 1.Sd3?
      • threat
        • 2.Sb4#
        • 2.Sf4#
      • 1...Sxb5
        • 2.Sb4#
      • 1...Qc3
        • 2.Sf4#
      • 1...Ra4
        • 2.Sf4#
      • 1...Bd1
        • 2.Sf4#
      • 1...Bc2
        • 2.Sf4#
      • 1...Ba4
        • 2.Sf4#
      • 1...Bc4
        • 2.Sf4#
        • 2.Re5#
      • 1...Sc6
        • 2.Sf4#
      • 1...g5
        • 2.Sb4#
      • 1...Kc4!
  • Keys
    • 1.Re8!
      • threat
        • 2.e4#
      • 1...Sxb5
        • 2.Qxb5#
      • 1...dxe3
        • 2.Qd3#
      • 1...Bd1
        • 2.Kxg3#
      • 1...Bc2
        • 2.Qc4#
      • 1...Ba4
        • 2.Qc4#
      • 1...Bc4
        • 2.Qxc4#
      • 1...d3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(e);N_GUARD,P_PINP(E)::QAB1(C)
    • B(e);N_GUARD,P_PINP(E)::QAB1(C),XB(e)
    • S(i);OGATE,XP(H)::QAR2(C),XS(i)
    • P(g);OGATEB,XP(E)::QAR2(C)
    • P(g);OGATEB::QAR2(C),XP(g)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • B(A)+R(G),DCHECK
      • Vars
        • P(g);OGATEB,XP(E)::QAR2(C)
      • Refutation
        • P(j);CHECK
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(i);XP(H)::S(B)
        • Q(a);::S(B)
        • R(d);::S(B)
        • B(e);P_PINQ(C)::S(B)
        • B(e);::S(B)
        • S(i);::S(B)
        • P(j);::S(B)
      • Refutation
        • K(h);P_SPINP(g),S_FLIGHT
  • Actual
    • R(G);
    • Threat
      • P(E)
    • Vars
      • S(i);OGATE,XP(H)::QAR2(C),XS(i)
      • P(g);OGATEB,XP(E)::QAR2(C)
      • B(e);P_PINP(E),P_PINQ(C),S_CUTR(b)::B(A)+K(F),XP(f)
      • B(e);N_GUARD,P_PINP(E)::QAB1(C)
      • B(e);N_GUARD,P_PINP(E)::QAB1(C),XB(e)
      • P(g);OGATEB::QAR2(C),XP(g)
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