MESON Chess Problem Database

Problem Display
PID: 152473 (1Q6/p7/r2ppp2/RN3P2/1p2kpb1/1P6/n1P1NKn1/1B2R3 w - - 0 1)

Dawson, Thomas Rayner

Falkirk Herald, 1940

(First published on Wed Sep 4 1940)

1Q6/p7/r2ppp2/RN3P2/1p2kpb1/1P6/n1P1NKn1/1B2R3

#2

10 + 11

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf5
      • 2.Sec3#
    • 1...d5
      • 2.Sg3#
      • 2.c3#
      • 2.c4#
    • 1...exf5
      • 2.Sec3#
    • 1...e5
      • 2.c4#
  • Tries
    • 1.Sbc3+?
      • 1...Sxc3
        • 2.Qxb4#
      • 1...bxc3!
    • 1.Qc8?
      • threat
        • 2.Qxe6#
      • 1...Kd5
        • 2.Sbc3#
      • 1...Ke5
        • 2.Qxe6#
      • 1...Bxf5
        • 2.Sec3#
      • 1...exf5
        • 2.Sec3#
        • 2.Qe6#
      • 1...d5
        • 2.Sg3#
      • 1...e5
        • 2.Sec3#
        • 2.c4#
      • 1...Kxf5!
    • 1.Qg8?
      • threat
        • 2.Qxe6#
      • 1...Ke5
        • 2.Qxe6#
      • 1...Kxf5
        • 2.Sed4#
        • 2.Sxd6#
      • 1...Bxf5
        • 2.Sec3#
      • 1...exf5
        • 2.Sec3#
        • 2.Sg3#
        • 2.Qe6#
      • 1...d5
        • 2.Sg3#
      • 1...e5
        • 2.Sg3#
        • 2.c3#
        • 2.c4#
      • 1...Kd5!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qxe6#
      • 1...Kd5
        • 2.Sbc3#
      • 1...Ke5
        • 2.Qxe6#
      • 1...Kxf5
        • 2.Sxd6#
      • 1...Bxf5
        • 2.Sec3#
      • 1...d5
        • 2.Sg3#
      • 1...e5
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(f);SBLOCK,XP(I)::R(B)+S(D),DCHECK
    • P(i);SBLOCK,XP(I)::R(B)+S(D),DCHECK
    • P(i);SBLOCK::B(A)+P(C)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • S(a);XS(H)::QAR(J),XP(c)
      • Refutation
        • P(c);XS(H)
    • Try
      • Q(J);
      • Threat
        • QAR2(J),XP(i)
      • Vars
        • K(d);S_FLIGHT::R(G)+S(H),DCHECK
        • K(d);P-FLIGHT::QAR1(J),XP(i)
        • B(f);SBLOCK,XP(I)::R(B)+S(D),DCHECK
        • P(h);SBLOCK::R(B)+S(D),DCHECK
      • Refutation
        • K(d);P_SPINP(i),S_FLIGHT,XP(I)
    • Try
      • Q(J);
      • Threat
        • QAR2(J),XP(i)
      • Vars
        • K(d);P-FLIGHT::QAR1(J),XP(i)
        • B(f);SBLOCK,XP(I)::R(B)+S(D),DCHECK
        • P(h);SBLOCK::R(B)+S(D),DCHECK
      • Refutation
        • K(d);P_SPINP(i),S_FLIGHT
  • Actual
    • Q(J);P_PINP(i)
    • Threat
      • QAR2(J),XP(i)
    • Vars
      • K(d);N_SPINP(i),S_FLIGHT::R(G)+S(H),DCHECK
      • K(d);P-FLIGHT::QAR1(J),XP(i)
      • K(d);N_SPINP(i),S_FLIGHT,XP(I)::R(G)+S(H),DCHECK,XP(h)
      • B(f);SBLOCK,XP(I)::R(B)+S(D),DCHECK
      • P(h);SBLOCK::R(B)+S(D),DCHECK
      • P(i);::B(A)+P(C)
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