MESON Chess Problem Database

Problem Display
PID: 158021 (7n/3P2r1/P1Np4/1Qpk1P2/p7/P2P4/6p1/6K1 w - - 0 1)

Meyer, Max Julius

Boys' Own Paper, 1894

(First published on Sat Mar 3 1894)

7n/3P2r1/P1Np4/1Qpk1P2/p7/P2P4/6p1/6K1

#2

8 + 7

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qb3+?
      • 1...Kxc6
        • 2.Qb7#
      • 1...c4
        • 2.Qxc4#
        • 2.Qb5#
      • 1...axb3!
  • Keys
    • 1.Qb2!
      • 1...Kxc6
        • 2.Qb7#
      • 1...Rxd7
        • 2.Qxg2#
      • 1...c4
        • 2.Qb5#
      • 1...Rg3
        • 2.Se7#
      • 1...Rg4
        • 2.Se7#
      • 1...Rg5
        • 2.Se7#
      • 1...Rg6
        • 2.Se7#
      • 1...Re7
        • 2.Sxe7#
      • 1...Rf7
        • 2.Qxg2#
      • 1...Rh7
        • 2.Qxg2#
      • 1...Rg8
        • 2.Se7#
      • 1...Sg6
        • 2.Qxg2#
      • 1...Sf7
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK,N_PINP(c)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(G)::QAB1(D)
      • Refutation
        • P(b);XQ(D)
  • Actual
    • Q(D);N_PINP(c)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(G)::QAB1(D)
      • R(f);N_GUARD,XP(H)::QAB(D),XP(a)
      • P(c);OGATEB::QAR2(D)
      • R(f);N_GUARD::S(G)
      • R(f);N_GUARD::S(G),XR(f)
      • R(f);N_GUARD::QAB(D),XP(a)
      • S(g);S_CUTR(f)::QAB(D),XP(a)
      • S(g);S_CUTR(f)::S(G)
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