MESON Chess Problem Database

Problem Display
PID: 138681 (4nB2/b7/4p1Nr/Q2P2P1/1p1k1rn1/1P6/2Bp1q2/1K1N4 w - - 0 1)

Savournin, Jacques

British Chess Magazine, 2011

4nB2/b7/4p1Nr/Q2P2P1/1p1k1rn1/1P6/2Bp1q2/1K1N4

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bb8
      • 2.Qc5#
    • 1...exd5
      • 2.Qxb4#
      • 2.Qa1#
      • 2.Qxa7#
  • Keys
    • 1.Se7!
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
      • 1...exd5
        • 2.Qxd5#
      • 1...Bc5
        • 2.Qa1#
      • 1...Se5
        • 2.Qxa7#
      • 1...e5
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(i);N_GUARD::QAB1(E),XB(i)
    • B(i);N_GUARD::QAB1(E)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(d);S_FLIGHT::S(H)
      • P(g);OGATE,XP(F)::QAR1(E),XP(g)
      • B(i);SBLOCK::QAB(E)
      • S(f);SBLOCK::QAB(E),XB(i)
      • P(g);SBLOCK::QAR2(E),XP(c)
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