MESON Chess Problem Database

Problem Display
PID: 57022 (2R5/2n5/Q3p3/b1kp4/1R3N2/p2B4/n2P3K/1br1B3 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Knowledge, 1901

2R5/2n5/Q3p3/b1kp4/1R3N2/p2B4/n2P3K/1br1B3

#2

8 + 9

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3
      • 2.Sxd3#
    • 1...Bxb4
      • 2.Sxe6#
    • 1...Bb6
      • 2.Qxb6#
    • 1...Sxb4
      • 2.Sxe6#
    • 1...d4
      • 2.Rb5#
  • Tries
    • 1.Bf2+?
      • 1...d4
        • 2.Rb5#
      • 1...Kxb4!
    • 1.Rxc7+?
      • 1...Kxb4
        • 2.Qb5#
      • 1...Bxc7!
    • 1.Qxa5+?
      • 1...Kc6
        • 2.Qxc7#
      • 1...Kd6!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Sd3#
        • 2.d4#
      • 1...Kxb4
        • 2.Sd3#
      • 1...Rxe1
        • 2.Sd3#
      • 1...Rxc2
        • 2.Sd3#
      • 1...Bxc2
        • 2.d4#
      • 1...Bxb4
        • 2.Sxe6#
      • 1...Sxb4
        • 2.Sxe6#
      • 1...Bb6
        • 2.Qxb6#
      • 1...Rd1
        • 2.Sd3#
      • 1...Sc3
        • 2.Sd3#
      • 1...d4
        • 2.Rc4#
      • 1...e5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(a);XB(D)::S(F),XB(a)
    • B(e);SBLOCK,XR(E)::S(F),XP(h)
    • B(e);N_GUARD::QAB1(G),XB(e)
    • S(c);SBLOCK,XR(E)::S(F),XP(h)
    • P(g);SBLOCK::R1(E)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • P(g);P_SPINP(g)::R1(E)
      • Refutation
        • K(f);N_SPINS(i),S_FLIGHT,XR(E)
    • Try
      • R(H);CHECK,XS(i)
      • Vars
        • K(f);S_FLIGHT,XR(E)::QAR1(G)
      • Refutation
        • B(e);P_PINS(F),XR(H)
    • Try
      • Q(G);CHECK,XB(e)
      • Vars
        • K(f);P-FLIGHT::QAR1(G),XS(i)
      • Refutation
        • K(f);N_SPINS(i),S_FLIGHT
  • Actual
    • B(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);N_SPINS(i),S_FLIGHT,XR(E)::S(F)
      • R(b);XB(A)::S(F)
      • R(b);P_PINP(B),XB(D)::S(F)
      • B(a);XB(D)::P(B)
      • B(e);SBLOCK,XR(E)::S(F),XP(h)
      • S(c);SBLOCK,XR(E)::S(F),XP(h)
      • B(e);N_GUARD::QAB1(G),XB(e)
      • R(b);::S(F)
      • S(c);::S(F)
      • P(g);N_GUARD::R1(E)
      • P(h);::S(F)
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