MESON Chess Problem Database

Problem Display
PID: 62161 (8/4Q2n/1qpp2p1/2b3pb/rRr2k2/pR6/3P3N/1BB4K w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Chess, 1944

8/4Q2n/1qpp2p1/2b3pb/rRr2k2/pR6/3P3N/1BB4K

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4
      • 2.d4#
    • 1...Rd4
      • 2.Qe3#
    • 1...Re4
      • 2.Qxe4#
    • 1...Bg1
      • 2.Qxd6#
    • 1...Bf2
      • 2.Qxd6#
    • 1...Be3
      • 2.Qxd6#
    • 1...Bd4
      • 2.Qe4#
    • 1...Bf3+
      • 2.Rxf3#
    • 1...Sf6
      • 2.Qxf6#
    • 1...Sf8
      • 2.Qf6#
  • Tries
    • 1.Rxc4+?
      • 1...Bd4
        • 2.Qxd6#
        • 2.Qe3#
        • 2.Qe4#
      • 1...Rxc4!
    • 1.Qf7+?
      • 1...Sf6
        • 2.Qxf6#
      • 1...Ke5!
  • Keys
    • 1.Rc3!
      • threat
        • 2.d4#
      • 1...Bf3+
        • 2.Rxf3#
      • 1...Re4
        • 2.Qxe4#
      • 1...Be3
        • 2.Qxd6#
      • 1...Rd4
        • 2.Qe3#
      • 1...Bg1
        • 2.Qxd6#
      • 1...Bf2
        • 2.Qxd6#
      • 1...Bd4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD,N_SPINR(c),XR(G)::B(B)+P(D)
    • R(c);S_CUTB(e)::QAB1(H)
    • R(c);N_GUARD::QAR1(H),XR(c)
    • B(e);N_GUARD::QAB(H),XP(j)
    • B(e);N_SPINR(c),S_CUTR(c)::QAR1(H)
    • B(g);CHECK,N_GUARD::R1(F),XB(g)
    • S(l);N_GUARD::QAR2(H),XS(l)
    • S(l);N_GUARD::QAR2(H)
  • Tries
    • Try
      • R(G);CHECK,XR(c)
      • Refutation
        • R(b);XR(G)
    • Try
      • Q(H);CHECK
      • Vars
        • S(l);N_GUARD,P_SPINS(l)::QAR2(H),XS(l)
      • Refutation
        • K(d);N_SPINR(c),S_FLIGHT
  • Actual
    • R(F);
    • Threat
      • B(B)+P(D)
    • Vars
      • B(g);CHECK,N_GUARD::R1(F),XB(g)
      • R(c);N_GUARD::QAR1(H),XR(c)
      • B(e);N_GUARD::QAB(H),XP(j)
      • R(c);S_CUTB(e)::QAB1(H)
      • B(e);N_SPINR(c),S_CUTR(c)::QAR1(H)
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