MESON Chess Problem Database

Problem Display
PID: 274794 (1N6/n2b1B1n/4q1Rp/Pp1k4/1P1Pp3/1pK5/4Qp1B/8 w - - 0 1)

Eddy, Edwin John

Western Morning News, 1925

(First published on Sat Jul 25 1925)

1N6/n2b1B1n/4q1Rp/Pp1k4/1P1Pp3/1pK5/4Qp1B/8

#2

9 + 10

15239 Valois Notebooks 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf7
      • 2.Rd6#
    • 1...Bc6
      • 2.Bxe6#
    • 1...Be8
      • 2.Bxe6#
    • 1...Sc6
      • 2.Qxb5#
    • 1...Sf8
      • 2.Qh5#
    • 1...e3
      • 2.Qf3#
  • Tries
    • 1.Rxe6?
      • threat
        • 2.Rd6#
        • 2.Qxe4#
      • 1...Sg5
        • 2.Rd6#
      • 1...Sf6
        • 2.Rd6#
      • 1...e3
        • 2.Qf3#
      • 1...Bxe6!
    • 1.Qxb5+?
      • 1...Bxb5
        • 2.Bxe6#
      • 1...Sxb5+!
    • 1.Qxf2?
      • threat
        • 2.Qf5#
      • 1...Qxf7
        • 2.Rd6#
      • 1...Sc6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Qxe4#
      • 1...Qxf7
        • 2.Rd6#
      • 1...Bxc6
        • 2.Bxe6#
      • 1...Sxc6
        • 2.Qxb5#
      • 1...e3
        • 2.Qf3#
      • 1...Sc8
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(f);N_SPINQ(f),OGATE,XB(H)::R1(G)
    • B(i);N_GUARD::B(H),XQ(f)
    • S(h);N_GUARD,S_CUTB(i)::QAR2(A),XP(d)
    • S(j);N_GUARD::QAR(A)
    • P(c);OGATEB::QAB(A)
  • Tries
    • Try
      • R(G);XQ(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(j);::B(H)+R(G),DCHECK
        • P(c);OGATEB::QAB(A)
      • Refutation
        • B(i);P_SPINB(i),XR(G)
    • Try
      • Q(A);CHECK,XP(d)
      • Vars
        • B(i);XQ(A)::B(H),XQ(f)
      • Refutation
        • S(h);CHECK,XQ(A)
    • Try
      • Q(A);XP(a)
      • Threat
        • QAR2(A)
      • Vars
        • Q(f);N_SPINQ(f),OGATE,XB(H)::R1(G)
      • Refutation
        • S(h);
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(e);N_GUARD,S_FLIGHT,XS(I)::QAB(A),XP(c)
      • Q(f);N_SPINQ(f),OGATE,XB(H)::R1(G)
      • B(i);N_GUARD,SBLOCK,XS(I)::B(H),XQ(f)
      • S(h);N_GUARD,XS(I)::QAR2(A),XP(d)
      • P(c);OGATEB::QAB(A)
      • S(h);N_GUARD::QAR2(A),XP(d)
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