MESON Chess Problem Database

Problem Display
PID: 259534 (2B3K1/8/Q4B2/n4q1p/3Rppkp/6b1/4P1N1/6N1 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

Western Morning News, 1924

(First published on Sat Nov 8 1924)

2B3K1/8/Q4B2/n4q1p/3Rppkp/6b1/4P1N1/6N1

#2

8 + 8

5454 Near Snap 2022
15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6+
      • 2.Bxe6#
      • 2.Qxe6#
    • 1...Qd7
      • 2.Bxd7#
    • 1...Qxc8+
      • 2.Qxc8#
    • 1...e3
      • 2.Sxe3#
    • 1...f3
      • 2.exf3#
  • Tries
    • 1.Be7?
      • threat
        • 2.Qg6#
      • 1...Qe6+
        • 2.Bxe6#
        • 2.Qxe6#
      • 1...Qxc8+
        • 2.Qxc8#
      • 1...Sc6!
    • 1.Bd8?
      • threat
        • 2.Qg6#
      • 1...Qe6+
        • 2.Bxe6#
        • 2.Qxe6#
      • 1...Sc6!
    • 1.Qb7?
      • threat
        • 2.Qg7#
      • 1...Qe6+
        • 2.Bxe6#
      • 1...Qxc8+
        • 2.Qxc8#
      • 1...Qd7
        • 2.Bxd7#
        • 2.Qxd7#
      • 1...Sxb7!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Rg7#
      • 1...Qe6+
        • 2.Qxe6#
      • 1...Qh7+
        • 2.Rxh7#
      • 1...Qd5+
        • 2.Rxd5#
      • 1...Qxd7
        • 2.Bxd7#

Anticipated by 148154(1905)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(g);OGATEB::B(G),XQ(g)
    • Q(g);CHECK,N_SPINQ(g),OGATE,XB(G)::QAB(E),XQ(g)
    • P(b);P_SPINP(c)::S(C),XP(b)
    • P(c);OGATE,P_SPINP(b)::P(B),XP(c)
  • Tries
    • Try
      • B(F);
      • Threat
        • QAR2(E)
      • Vars
        • Q(g);CHECK,N_SPINQ(g),OGATE,XB(G)::QAB(E),XQ(g)
      • Refutation
        • S(f);
    • Try
      • B(F);
      • Threat
        • QAR2(E)
      • Refutation
        • S(f);
    • Try
      • Q(E);
      • Threat
        • QAR(E)
      • Vars
        • Q(g);CHECK,OGATEB::B(G),XQ(g)
        • Q(g);CHECK,N_SPINQ(g),OGATE,XB(G)::QAB(E),XQ(g)
      • Refutation
        • S(f);XQ(E)
  • Actual
    • R(D);N_PINQ(g)
    • Threat
      • R(D)
    • Vars
      • Q(g);CHECK,OGATEB::QAB(E),XQ(g)
      • Q(g);CHECK,OGATEB::B(G)+R(D),XQ(g)
      • Q(g);OGATE,P_SPINQ(g),XR(D)::B(G),XQ(g)
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