MESON Chess Problem Database

Problem Display
PID: 155213 (4Rnn1/3N4/Kp2pr1p/5p2/2B1kp2/2Q5/3P3b/1b6 w - - 0 1)

Geary, William

Hampstead Express, 1907

(First published on Sat Apr 27 1907)

4Rnn1/3N4/Kp2pr1p/5p2/2B1kp2/2Q5/3P3b/1b6

#2

6 + 11

15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qd3#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Se7
      • 2.Sxf6#
    • 1...f3
      • 2.Qe3#
    • 1...b5
      • 2.Sc5#
    • 1...e5
      • 2.Rxe5#
  • Tries
    • 1.Be2?
      • threat
        • 2.Bf3#
        • 2.Qe5#
        • 2.Qc4#
      • 1...Bd3+
        • 2.Qxd3#
      • 1...Sxd7
        • 2.Bf3#
      • 1...f3
        • 2.Qc4#
      • 1...Ba2
        • 2.Bf3#
        • 2.Qe5#
        • 2.Qd3#
      • 1...Bg1
        • 2.Bf3#
        • 2.Qe5#
      • 1...Sg6
        • 2.Bf3#
        • 2.Qc4#
      • 1...b5
        • 2.Bf3#
        • 2.Qe5#
      • 1...e5
        • 2.Bf3#
        • 2.Rxe5#
        • 2.Qxe5#
        • 2.Qc4#
      • 1...Kd5!
  • Keys
    • 1.Bb5!
      • threat
        • 2.Bc6#
      • 1...Kd5
        • 2.Qe5#
      • 1...Bd3
        • 2.Qxd3#
      • 1...f3
        • 2.Qc4#
      • 1...Ba2
        • 2.Qd3#
      • 1...Se7
        • 2.Sxf6#
      • 1...e5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAB1(B)
    • B(a);N_GUARD,P_PINB(C)::QAB1(B),XB(a)
    • S(k);N_GUARD,N_SPINP(g)::S(E),XR(h)
    • P(d);N_GUARD::QAR1(B)
    • P(f);N_GUARD::S(E)
    • P(g);OGATE::R1(F),XP(g)
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(B),XB(a)
        • S(j);XS(E)::B(C)
        • P(d);::QAR2(B)
      • Refutation
        • K(c);N_SPINP(g),S_FLIGHT
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • K(c);N_SPINP(g),S_FLIGHT::QAR1(B)
      • B(a);N_GUARD,P_PINB(C)::QAB1(B),XB(a)
      • P(d);SBLOCK::QAR2(B)
      • B(a);N_GUARD::QAB1(B)
      • S(k);N_GUARD,N_SPINP(g)::S(E),XR(h)
      • P(g);OGATE::R1(F),XP(g)
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