MESON Chess Problem Database

Problem Display
PID: 71863 (q7/p1p1b3/R1Pk1pN1/pQ4p1/K1p1brB1/1PNn1p2/3Rr2B/8 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Chess, 1952

q7/p1p1b3/R1Pk1pN1/pQ4p1/K1p1brB1/1PNn1p2/3Rr2B/8

#2

10 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd2
      • 2.Sxe4#
    • 1...Rf2
      • 2.Sxe4#
    • 1...Rg2
      • 2.Sxe4#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bf5
      • 2.Qd5#
    • 1...Bxg6
      • 2.Qd5#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Rxd3+?
      • 1...Bxd3
        • 2.Qd5#
      • 1...Bd5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...cxd3!
  • Keys
    • 1.bxc4!
      • threat
        • 2.c5#
      • 1...Rxd2
        • 2.Sxe4#
      • 1...Bxc6
        • 2.Rxd3#
      • 1...Bxg6
        • 2.Qd5#
      • 1...Bf5
        • 2.Qd5#
      • 1...f5
        • 2.Qe5#
      • 1...Bd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD,N_SPINS(b),XR(A)::S(D),XB(e)
    • R(a);N_GUARD::S(D),XB(e)
    • B(e);N_GUARD,N_SPINS(b)::QAR1(G),XB(e)
    • B(e);N_GUARD::QAR1(G)
    • B(e);N_GUARD,XS(J)::QAR1(G)
    • P(j);N_GUARD::QAB1(G)
  • Tries
    • Try
      • R(A);CHECK,XS(b)
      • Vars
        • B(e);N_GUARD,XR(A)::QAR1(G)
      • Refutation
        • P(d);XR(A)
  • Actual
    • P(C);XP(d)
    • Threat
      • P(C)
    • Vars
      • R(a);N_GUARD,N_SPINS(b),XR(A)::S(D),XB(e)
      • B(e);N_GUARD,P_PINP(C),P_PINQ(G),P_SPINB(e),XP(I)::R(A),XS(b)
      • B(e);N_GUARD,P_PINP(C),XS(J)::QAR1(G)
      • B(e);N_GUARD,P_PINP(C)::QAR1(G)
      • P(j);N_GUARD::QAB1(G)
      • B(e);N_GUARD,N_SPINS(b),P_PINP(C)::QAR1(G),XB(e)
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