MESON Chess Problem Database

Problem Display
PID: 132094 (q5n1/3p1Q2/1pb3p1/n4pP1/2P1kN2/2B1pR2/1P3P2/3B3K w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

The Field, 1955

(First published on Thu Oct 20 1955)

q5n1/3p1Q2/1pb3p1/n4pP1/2P1kN2/2B1pR2/1P3P2/3B3K

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc4
      • 2.Qxc4#
    • 1...Sf6
      • 2.Qe7#
    • 1...Sh6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...d5
      • 2.Qe6#
    • 1...d6
      • 2.Qe6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Rxe3#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...exf2
        • 2.Sxf2#
      • 1...e2
        • 2.Re3#
      • 1...f4
        • 2.Qxg6#
      • 1...Kxd3!
    • 1.Sh3?
      • threat
        • 2.Rxe3#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...exf2
        • 2.Sxf2#
      • 1...e2
        • 2.Re3#
      • 1...f4
        • 2.Qxg6#
      • 1...Kd3!
    • 1.Sh5?
      • threat
        • 2.Rxe3#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...exf2
        • 2.Sg3#
      • 1...gxh5
        • 2.Qxf5#
      • 1...e2
        • 2.Re3#
      • 1...f4
        • 2.Qxg6#
      • 1...Kd3!
    • 1.Qe8+?
      • 1...Se7
        • 2.Qxe7#
      • 1...Qxe8!
    • 1.Qg7?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Sxc4
        • 2.Qd4#
      • 1...Qb8
        • 2.Qd4#
      • 1...Qe8
        • 2.Qd4#
      • 1...Sb3
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe7#
      • 1...d6
        • 2.Qd4#
      • 1...e2!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Rxe3#
      • 1...Kd3
        • 2.Rxe3#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...exf2
        • 2.Re3#
      • 1...e2
        • 2.Re3#
      • 1...f4
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(c);OGATE,XP(G)::QAR2(J),XS(c)
    • S(j);N_GUARD::QAR(J)
    • S(j);N_GUARD::QAR(J),XS(j)
    • P(h);N_GUARD::QAR2(J)
  • Tries
    • Try
      • S(H);
      • Threat
        • R1(F),XP(a)
      • Vars
        • S(c);OGATE,XP(G)::QAR2(J),XS(c)
        • P(a);XP(D)::S(H),XP(a)
        • P(a);::R1(F)
        • P(d);OGATEB::QAB(J),XP(g)
      • Refutation
        • K(b);P_PINR(F),P_SPINP(a),S_FLIGHT,XS(H)
    • Try
      • S(H);
      • Threat
        • R1(F),XP(a)
      • Vars
        • S(c);OGATE,XP(G)::QAR2(J),XS(c)
        • P(a);XP(D)::S(H),XP(a)
        • P(a);::R1(F)
        • P(d);OGATEB::QAB(J),XP(g)
      • Refutation
        • K(b);P_PINR(F),P_SPINP(a),S_FLIGHT
    • Try
      • S(H);
      • Threat
        • R1(F),XP(a)
      • Vars
        • S(c);OGATE,XP(G)::QAR2(J),XS(c)
        • P(a);XP(D)::S(H)
        • P(g);N_GUARD,XS(H)::QAB1(J),XP(d)
        • P(a);::R1(F)
        • P(d);OGATEB::QAB(J),XP(g)
      • Refutation
        • K(b);P_PINR(F),P_SPINP(a),S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • S(j);N_GUARD,P_SPINS(j)::QAR(J),XS(j)
      • Refutation
        • Q(i);XQ(J)
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XP(G)::QAR1(J)
        • Q(i);::QAR1(J)
        • S(c);::QAR1(J)
        • S(j);N_GUARD::QAR(J)
        • P(h);::QAR1(J)
      • Refutation
        • P(a);
  • Actual
    • S(H);
    • Threat
      • R1(F),XP(a)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::R1(F),XP(a)
      • S(c);OGATE,XP(G)::QAR2(J),XS(c)
      • P(a);XP(D)::R1(F)
      • P(a);::R1(F)
      • P(d);OGATEB::QAB(J),XP(g)
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