MESON Chess Problem Database

Problem Display
PID: 272084 (1b2R1qN/PppBP1pb/1PQ5/N1P1k1p1/1pP1P3/3K4/3B4/8 w - - 0 1)

Swords, WJ

Sunday Referee, 1934

(First published on Sun Apr 8 1934)

1b2R1qN/PppBP1pb/1PQ5/N1P1k1p1/1pP1P3/3K4/3B4/8

#2

13 + 9

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc4+
      • 2.Sxc4#
    • 1...Qe6
      • 2.Qxe6#
    • 1...Qf7
      • 2.Sxf7#
    • 1...Qxe8
      • 2.Qe6#
    • 1...Qf8
      • 2.Qe6#
      • 2.exf8Q#
      • 2.exf8S#
      • 2.exf8B#
      • 2.exf8R#
    • 1...Qxh8
      • 2.Qe6#
    • 1...Bg6
      • 2.Sxg6#
    • 1...cxb6
      • 2.axb8Q#
      • 2.axb8B#
  • Tries
    • 1.Qd5+?
      • 1...Kf6
        • 2.Bxg5#
        • 2.Qd4#
        • 2.Qxg5#
      • 1...Qxd5+!
  • Keys
    • 1.Rf8!
      • 1...Qxc4+
        • 2.Sxc4#
      • 1...Qd5+
        • 2.Qxd5#
      • 1...Bxe4+
        • 2.Qxe4#
      • 1...Qxf8
        • 2.Qe6#
      • 1...Qxh8
        • 2.Qd5#
        • 2.Qe6#
        • 2.e8Q#
        • 2.e8R#
      • 1...Bxa7
        • 2.Qxc7#
      • 1...bxc6
        • 2.Sxc6#
      • 1...cxb6
        • 2.axb8Q#
        • 2.axb8B#
      • 1...Qe6
        • 2.Qxe6#
      • 1...Qf7
        • 2.Sxf7#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Bg6
        • 2.Sxg6#
      • 1...b3
        • 2.Bc3#
      • 1...g4
        • 2.Bf4#
      • 1...g6
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 2
  • Sets
    • Q(i);CHECK,XP(C)::S(E),XQ(i)
    • Q(i);N_GUARD::QAR1(H),XQ(i)
    • Q(i);N_GUARD::S(M),XQ(i)
    • Q(i);N_GUARD,XR(L)::QAR1(H)
    • Q(i);N_GUARD,XS(M)::QAR1(H)
    • B(g);N_GUARD::S(M),XB(g)
    • P(e);XP(G)::PXB(h)=Q
  • Tries
    • Try
      • Q(H);CHECK
      • Refutation
        • Q(i);CHECK,XQ(H)
  • Actual
    • R(L);
    • Vars
      • Q(i);CHECK,XP(C)::S(E),XQ(i)
      • Q(i);CHECK,N_GUARD::QAR1(H),XQ(i)
      • B(g);CHECK,OGATE,XP(D)::QAR1(H),XB(g)
      • Q(i);N_GUARD,XR(L)::QAR1(H)
      • B(h);N_GUARD,XP(I)::QAB(H),XP(e)
      • P(d);XQ(H)::S(E),XP(d)
      • P(e);XP(G)::PXB(h)=Q
      • Q(i);N_GUARD::QAR1(H),XQ(i)
      • Q(i);N_GUARD::S(M),XQ(i)
      • B(g);N_GUARD::R1(L),XB(g)
      • B(g);N_GUARD::S(M),XB(g)
      • P(a);N_GUARD::B(A)
      • P(c);N_GUARD::B(A)
      • P(f);N_GUARD,N_PINP(D)::QAB1(H)
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