MESON Chess Problem Database

Problem Display
PID: 120705 (3N3K/2p1B3/6B1/3pk2p/1Q6/3P4/4n3/4r3 w - - 0 1)

Reilly, William Henry

The Chess Problem, 1946

3N3K/2p1B3/6B1/3pk2p/1Q6/3P4/4n3/4r3

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.d4#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Sc6#
        • 2.Sf7#
      • 1...Sf4
        • 2.Sc6#
      • 1...d4
        • 2.Qf5#
        • 2.Qe4#
        • 2.Qg5#
      • 1...Rc1
        • 2.Sf7#
      • 1...Rf1
        • 2.Sc6#
      • 1...Sd4
        • 2.Sf7#
        • 2.Qg3#
      • 1...c6
        • 2.Sxc6#
        • 2.Sf7#
      • 1...hxg4!
    • 1.Qh4?
      • threat
        • 2.Qf6#
      • 1...d4
        • 2.Qg5#
        • 2.Qe4#
      • 1...Rf1!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Sc6#
      • 1...Sc1
        • 2.d4#
      • 1...Sg1
        • 2.d4#
      • 1...Sc3
        • 2.d4#
      • 1...Sg3
        • 2.d4#
      • 1...Sd4
        • 2.Qh2#
      • 1...Sf4
        • 2.d4#
      • 1...d4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK::P(A)
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::S(E)
        • R(a);::S(E)
      • Refutation
        • P(e);XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Refutation
        • R(a);
  • Actual
    • Q(B);
    • Threat
      • QAR2(B)
    • Vars
      • K(d);S_FLIGHT::S(E)
      • S(b);N_GUARD::P(A)
      • S(b);OGATE,SBLOCK::QAB(B)
      • P(c);SBLOCK::QAR2(B)
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