MESON Chess Problem Database

Problem Display
PID: 189746 (bnN5/2p5/n3N3/pk1B4/p2R4/3p4/P4K2/7Q w - - 0 1)

Henriksen, Thorleif Cammillo

3rd Prize, Budapesti Sakkor, 1912

bnN5/2p5/n3N3/pk1B4/p2R4/3p4/P4K2/7Q

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Bc4#
    • 1...Sc5
      • 2.Sxc7#
    • 1...d2
      • 2.Qf1#
  • Tries
    • 1.Sxc7+?
      • 1...Kc5
        • 2.Rc4#
      • 1...Sxc7!
    • 1.Bxa8?
      • threat
        • 2.Qb7#
      • 1...Sc5
        • 2.Sxc7#
      • 1...Sc6
        • 2.Bxc6#
        • 2.Qxc6#
      • 1...Sd7
        • 2.Bc6#
        • 2.Qc6#
      • 1...c6!
    • 1.Qd1?
      • threat
        • 2.Qxa4#
        • 2.Qxd3#
      • 1...Bxd5
        • 2.Qxa4#
      • 1...Sc5
        • 2.Sxc7#
      • 1...d2
        • 2.Qe2#
        • 2.Qxa4#
        • 2.Qf1#
      • 1...a3
        • 2.Qa4#
        • 2.Qxd3#
      • 1...c5
        • 2.Qxa4#
      • 1...Sb4!
  • Keys
    • 1.Bb3!
      • threat
        • 2.Bxa4#
      • 1...axb3
        • 2.a4#
      • 1...Sb4
        • 2.Bc4#
      • 1...Sc5
        • 2.Sxc7#
      • 1...a3
        • 2.Ba4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(e);SBLOCK::B(E)
    • S(e);N_GUARD,SBLOCK::S(F),XP(f)
    • P(a);OGATEB::QAB(A)
  • Tries
    • Try
      • S(F);CHECK,XP(f)
      • Vars
        • K(d);P-FLIGHT::R1(D)
      • Refutation
        • S(e);XS(F)
    • Try
      • B(E);XB(g)
      • Threat
        • QAR2(A)
      • Vars
        • S(e);N_GUARD,SBLOCK::S(F),XP(f)
      • Refutation
        • P(f);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);XB(E)::QAB1(A),XP(b)
        • S(e);N_GUARD,SBLOCK::S(F),XP(f)
        • P(f);::QAB1(A),XP(b)
      • Refutation
        • S(e);
  • Actual
    • B(E);
    • Threat
      • B(E),XP(b)
    • Vars
      • P(b);OGATE,XB(E)::P(B)
      • S(e);SBLOCK::B(E)
      • S(e);N_GUARD,SBLOCK::S(F),XP(f)
      • P(b);::B(E)
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