MESON Chess Problem Database

Problem Display
PID: 153842 (3K3N/2P2p2/2r1P3/Q2B1kBR/2N2P1P/1p1r2bP/2b5/8 w - - 0 1)

Bridgwater, Ralph Herbert

Birmingham Post, 1934

(First published on Tue Dec 11 1934)

3K3N/2P2p2/2r1P3/Q2B1kBR/2N2P1P/1p1r2bP/2b5/8

#2

12 + 7

15372 Bridgwater Scrapbook 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Se3#
    • 1...Rd2
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
    • 1...Rd4
      • 2.Se3#
    • 1...Rxd5+
      • 2.Qxd5#
    • 1...Rc5
      • 2.Sd6#
    • 1...Rd6+
      • 2.Sxd6#
    • 1...Rxc7
      • 2.Sd6#
    • 1...f6
      • 2.Bh6#
  • Tries
    • 1.Bf6+?
      • 1...Kxf4
        • 2.Be5#
      • 1...Kxf6!
    • 1.Rh6?
      • threat
        • 2.Rf6#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Rd6+
        • 2.Sxd6#
      • 1...f6
        • 2.Rxf6#
      • 1...Rxe6!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Be7#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Rd6+
        • 2.Sxd6#
      • 1...Rxd2
        • 2.Se3#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Bxh4
        • 2.Bxh4#
      • 1...Re3
        • 2.Sxe3#
      • 1...Bd1
        • 2.Qxd3#
      • 1...f6
        • 2.Bh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::S(B)
    • R(c);N_GUARD,N_PINB(F)::S(B),XR(c)
    • R(c);CHECK,OGATE,P_SPINR(c),XB(F)::QAR2(E),XR(c)
    • R(f);N_GUARD::S(B)
    • R(f);CHECK,N_GUARD,N_PINB(F)::S(B),XR(f)
    • R(f);N_GUARD,XP(J)::S(B)
    • P(g);SBLOCK::R(H)+B(G)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(C)::B(G)
      • Refutation
        • K(e);P-FLIGHT,XB(G)
    • Try
      • R(H);
      • Threat
        • R1(H)
      • Vars
        • R(c);CHECK,OGATE,P_SPINR(c),XB(F)::QAR2(E),XR(c)
        • R(f);CHECK,N_GUARD,N_PINB(F)::S(B),XR(f)
        • P(g);::R1(H),XP(g)
      • Refutation
        • R(f);XP(I)
  • Actual
    • Q(E);
    • Threat
      • R(H)+B(G)
    • Vars
      • R(c);CHECK,OGATE,XB(F)::QAR2(E),XR(c)
      • R(f);CHECK,N_GUARD,N_PINB(F)::S(B),XR(f)
      • R(c);N_GUARD,XQ(E)::S(B)
      • B(d);OGATE,XP(C)::QAR1(E),XB(d)
      • B(d);OGATE,XP(D)::R(H)+B(G),XB(d)
      • R(c);N_GUARD,N_PINB(F)::S(B),XR(c)
      • B(a);N_GUARD::QAB(E),XR(c)
      • P(g);SBLOCK::R(H)+B(G)
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