MESON Chess Problem Database

Problem Display
PID: 150924 (3rB1b1/1N4p1/5R2/q2N1PK1/1PPrkB2/2np1pp1/n1P5/3Q4 w - - 0 1)

Dawson, Thomas Rayner

Stratford Express, 1943

(First published on Tue Apr 20 1943)

3rB1b1/1N4p1/5R2/q2N1PK1/1PPrkB2/2np1pp1/n1P5/3Q4

#2

11 + 11

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Sc5#
    • 1...Qa4
      • 2.Sc5#
    • 1...Qc5
      • 2.Sxc5#
    • 1...Qa6
      • 2.Sc5#
    • 1...Qa8
      • 2.Sc5#
    • 1...Rxc4
      • 2.Qxd3#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Ra8
      • 2.Sd6#
    • 1...Rb8
      • 2.Sd6#
    • 1...Rc8
      • 2.Sd6#
    • 1...Rxe8
      • 2.Sd6#
    • 1...Be6
      • 2.Rxe6#
    • 1...Bh7
      • 2.Re6#
    • 1...Sc1
      • 2.Sxc3#
    • 1...Sxb4
      • 2.Sxc3#
    • 1...Sb1
      • 2.Qe1#
    • 1...Sa4
      • 2.Qe1#
    • 1...Sb5
      • 2.Sc5#
      • 2.Qe1#
    • 1...gxf6+
      • 2.Sxf6#
  • Keys
    • 1.Bc6!
      • threat
        • 2.Sxc3#
      • 1...gxf6+
        • 2.Sxf6#
      • 1...Qxd5
        • 2.Sc5#
      • 1...Rxc4
        • 2.Qxd3#
      • 1...R4xd5
        • 2.Qxd3#
      • 1...R8xd5
        • 2.Sd6#
      • 1...Bxd5
        • 2.Re6#
      • 1...Sxd1
        • 2.Sc3#
      • 1...Sxd5
        • 2.Qe1#
      • 1...Sb1
        • 2.Sc3#
        • 2.Qe1#
      • 1...Se2
        • 2.Sc3#
      • 1...Sa4
        • 2.Sc3#
        • 2.Qe1#
      • 1...Sb5
        • 2.Sc3#
        • 2.Sc5#
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 16
  • Sets
    • Q(h);N_GUARD::S(J)
    • Q(h);N_GUARD::S(J),XQ(h)
    • R(f);N_GUARD,XP(D)::QAB1(A),XP(c)
    • R(j);N_GUARD::S(J),XR(j)
    • R(j);N_GUARD::S(J)
    • R(j);N_GUARD,XB(K)::S(J)
    • B(k);N_GUARD::R(I),XB(k)
    • B(k);N_GUARD::R(I)
    • S(a);N_GUARD::S(F),XS(b)
    • S(a);N_GUARD,XP(C)::S(F),XS(b)
    • S(b);N_GUARD::QAR(A)
    • P(i);CHECK,XR(I)::S(F),XP(i)
  • Actual
    • B(K);
    • Threat
      • B(K)+S(F),DCHECK,XS(b)
    • Vars
      • P(i);CHECK,XR(I)::B(K)+S(F),DCHECK,XP(i)
      • Q(h);N_GUARD,P_PINP(G),P_SPINQ(h),XS(F)::S(J)
      • R(f);N_GUARD,XP(D)::QAB1(A),XP(c)
      • R(f);N_GUARD,P_PINP(G),P_SPINR(f),XS(F)::QAB1(A),XP(c)
      • R(j);N_GUARD,P_PINP(G),P_SPINR(j),XS(F)::S(J)
      • B(k);N_GUARD,P_SPINB(k),XS(F)::R(I)
      • S(b);XQ(A)::B(K)+S(F),DCHECK
      • S(b);N_GUARD,P_SPINS(b),XS(F)::QAR(A)
      • S(b);::B(K)+S(F),DCHECK
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