MESON Chess Problem Database

Problem Display
PID: 136649 (1bn4Q/p2Bp3/p2kP3/B1pN4/3pP3/3p3p/3P2p1/6K1 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

The Field, 1920

(First published on Sat Aug 14 1920)

1bn4Q/p2Bp3/p2kP3/B1pN4/3pP3/3p3p/3P2p1/6K1

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bc7
      • 2.Bxc7#
    • 1...Sb6
      • 2.Qxb8#
    • 1...h2+
      • 2.Qxh2#
    • 1...c4
      • 2.Bb4#
  • Tries
    • 1.Sc3?
      • threat
        • 2.e5#
      • 1...h2+
        • 2.Qxh2#
      • 1...Sb6
        • 2.Qxb8#
      • 1...c4
        • 2.Qxd4#
      • 1...dxc3!
    • 1.Se3?
      • threat
        • 2.Sc4#
        • 2.Sf5#
        • 2.e5#
      • 1...h2+
        • 2.Qxh2#
      • 1...Sb6
        • 2.Qxb8#
      • 1...c4
        • 2.Qxd4#
      • 1...dxe3!
    • 1.Sf4?
      • threat
        • 2.e5#
      • 1...Sb6
        • 2.Qxb8#
      • 1...c4
        • 2.Qxd4#
      • 1...h2+!
    • 1.Sc7?
      • threat
        • 2.Se8#
        • 2.e5#
      • 1...h2+
        • 2.Qxh2#
      • 1...Sb6
        • 2.Se8#
      • 1...c4
        • 2.Qxd4#
      • 1...Bxc7!
    • 1.Qg7?
      • threat
        • 2.Qg3#
      • 1...c4
        • 2.Bb4#
      • 1...h2+!
    • 1.Qh4?
      • threat
        • 2.Qg3#
        • 2.Qf4#
      • 1...h2+
        • 2.Qxh2#
      • 1...Ke5
        • 2.Qf4#
      • 1...c4!
    • 1.Qh5?
      • 1...h2+
        • 2.Qxh2#
      • 1...c4
        • 2.Bb4#
      • 1...Bc7
        • 2.Bxc7#
      • 1...Sb6!
    • 1.Qh6?
      • threat
        • 2.Qf4#
      • 1...h2+
        • 2.Qxh2#
      • 1...Ke5
        • 2.Qf4#
      • 1...c4!
  • Keys
    • 1.Sb4!
      • threat
        • 2.e5#
      • 1...h2+
        • 2.Qxh2#
      • 1...cxb4
        • 2.Qxd4#
      • 1...Sb6
        • 2.Qxb8#
      • 1...c4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(j);N_GUARD::B(D),XB(j)
    • S(k);OGATE::QAB(H),XB(j)
    • P(c);CHECK,OGATE::QAB(H),XP(c)
    • P(e);OGATEB::B(D)
  • Tries
    • Try
      • S(E);
      • Threat
        • P(C)
      • Vars
        • P(c);CHECK,OGATE::QAB(H),XP(c)
        • S(k);OGATE::QAB(H),XB(j)
        • P(e);N_GUARD::QAR2(H),XP(d)
      • Refutation
        • P(d);XS(E)
    • Try
      • S(E);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);CHECK,OGATE::QAB(H),XP(c)
        • S(k);OGATE::QAB(H),XB(j)
        • P(e);N_GUARD::QAR2(H),XP(d)
      • Refutation
        • P(d);XS(E)
    • Try
      • S(E);
      • Threat
        • P(C)
      • Vars
        • S(k);OGATE::QAB(H),XB(j)
        • P(e);N_GUARD::QAR2(H),XP(d)
      • Refutation
        • P(c);CHECK
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);CHECK,OGATE::QAB(H),XP(c)
        • S(k);::S(E)
        • P(e);N_GUARD::QAR2(H),XP(d)
      • Refutation
        • B(j);XS(E)
    • Try
      • Q(H);
      • Threat
        • QAB(H)
      • Vars
        • P(e);OGATEB::B(D)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);CHECK,OGATE::QAB(H),XP(c)
        • K(g);S_FLIGHT::QAB1(H)
      • Refutation
        • P(e);
    • Try
      • Q(H);
      • Vars
        • P(c);CHECK,OGATE::QAB(H),XP(c)
        • P(e);OGATEB::B(D)
        • B(j);N_GUARD::B(D),XB(j)
      • Refutation
        • S(k);
    • Try
      • Q(H);
      • Threat
        • QAB(H)
      • Vars
        • P(c);CHECK,OGATE::QAB(H),XP(c)
        • K(g);S_FLIGHT::QAB1(H)
      • Refutation
        • P(e);
  • Actual
    • S(E);
    • Threat
      • P(C)
    • Vars
      • P(c);CHECK,OGATE::QAB(H),XP(c)
      • P(e);N_GUARD,XS(E)::QAR2(H),XP(d)
      • S(k);OGATE::QAB(H),XB(j)
      • P(e);N_GUARD::QAR2(H),XP(d)
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