MESON Chess Problem Database

Problem Display
PID: 169366 (1nK1B3/8/1p1N3R/1pk1p3/1pP5/1b2p3/2n1N2b/Q7 w - - 0 1)

Trommler, Sven

1/2 Prize, SuperProblem 122. TT, 2014

1nK1B3/8/1p1N3R/1pk1p3/1pP5/1b2p3/2n1N2b/Q7

#2

7 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qxe5#
  • Tries
    • 1.Bxb5?
      • threat
        • 2.Se4#
        • 2.Sb7#
      • 1...e4
        • 2.Sxe4#
        • 2.Sb7#
      • 1...Bxc4!
    • 1.Bf7?
      • threat
        • 2.Se4#
        • 2.Sb7#
      • 1...Kc6
        • 2.Se4#
        • 2.Sb7#
      • 1...e4
        • 2.Sxe4#
        • 2.Sb7#
      • 1...bxc4!
    • 1.Qd1?
      • threat
        • 2.Qd5#
      • 1...Bxc4
        • 2.Se4#
        • 2.Sb7#
      • 1...bxc4
        • 2.Se4#
        • 2.Sb7#
      • 1...Sd4!
    • 1.Qh1?
      • threat
        • 2.Qd5#
      • 1...Bxc4
        • 2.Sb7#
      • 1...bxc4
        • 2.Sb7#
      • 1...e4!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qd5#
      • 1...Bxc4
        • 2.Se4#
      • 1...bxc4
        • 2.Se4#
      • 1...Sc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::QAR2(A),XP(h)
  • Tries
    • Try
      • B(G);XP(f)
      • Threat
        • DUALS(2)
      • Refutation
        • B(c);XP(C)
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Refutation
        • P(f);XP(C)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(c);SBLOCK,XP(C)::S(D)
        • P(f);SBLOCK,XP(C)::S(D)
      • Refutation
        • P(h);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • B(c);SBLOCK,XP(C)::S(D)
      • P(f);SBLOCK,XP(C)::S(D)
      • S(j);N_GUARD::QAR1(A),XS(j)
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Developed and maintained by Brian Stephenson.
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