MESON Chess Problem Database

Problem Display
PID: 263461 (5Qn1/3p2K1/2p5/2Rpk1N1/2P1P3/2P1p3/3B2Bb/1n2R1q1 w - - 0 1)

Rossomakho, Yakov V

Sushkov, Yuri Akimovich

Zadachi i Etyudi, 2009

5Qn1/3p2K1/2p5/2Rpk1N1/2P1P3/2P1p3/3B2Bb/1n2R1q1

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc3
      • 2.Bxc3#
    • 1...Sf6
      • 2.Qxf6#
    • 1...Sh6
      • 2.Qf6#
    • 1...Se7
      • 2.Qf6#
    • 1...d6
      • 2.Qf5#
  • Keys
    • 1.cxd5!
      • threat
        • 2.d6#
      • 1...Sxc3
        • 2.Bxc3#
      • 1...exd2
        • 2.Sf3#
      • 1...cxd5
        • 2.Rxd5#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Se7
        • 2.Qf6#
      • 1...e2
        • 2.Sf7#
      • 1...d6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);OGATE,XP(D)::B(B),XS(a)
    • S(i);N_GUARD::QAB1(J),XS(i)
    • S(i);N_GUARD::QAB1(J)
    • P(h);SBLOCK::QAR1(J)
  • Actual
    • P(E);XP(e)
    • Threat
      • R(G)+P(E)
    • Vars
      • S(a);OGATE,XP(D)::B(B),XS(a)
      • P(d);XB(B)::S(H)
      • P(g);OGATE,P_SPINP(g),XP(E)::R1(G),XP(g)
      • S(i);N_GUARD::QAB1(J),XS(i)
      • S(i);N_GUARD::QAB1(J)
      • P(d);::S(H)
      • P(h);SBLOCK::QAR1(J)
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