MESON Chess Problem Database

Problem Display
PID: 74202 (2n1N1QN/7p/4pp1B/5k2/R4p2/3K2pb/8/5n2 w - - 0 1)

Berg, Wolfgang

Wochenpost, 1993

2n1N1QN/7p/4pp1B/5k2/R4p2/3K2pb/8/5n2

#2

6 + 9

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Ra5#
  • Tries
    • 1.Sc7?
      • threat
        • 2.Qxe6#
      • 1...e5
        • 2.Qe6#
        • 2.Qxc8#
      • 1...Ke5!
    • 1.Sg7+?
      • 1...Kg4
        • 2.Rxf4#
      • 1...Ke5!
    • 1.Sf7?
      • threat
        • 2.Rxf4#
      • 1...f3
        • 2.Rf4#
        • 2.Qxh7#
      • 1...e5!
    • 1.Qxh7+?
      • 1...Ke5
        • 2.Ra5#
        • 2.Qe4#
      • 1...Kg4!
    • 1.Qg6+?
      • 1...Ke5
        • 2.Ra5#
        • 2.Qe4#
      • 1...hxg6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qh5#
      • 1...Kg4
        • 2.Rxf4#
      • 1...Ke5
        • 2.Ra5#
      • 1...Bg4
        • 2.Qxf6#
      • 1...e5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(e);P-FLIGHT::R(B)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(E),XP(f)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(e);P_SPINP(d),S_FLIGHT::R1(B),XP(d)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(F);
      • Threat
        • R1(B),XP(d)
      • Refutation
        • P(f);
    • Try
      • Q(E);CHECK,XP(h)
      • Refutation
        • K(e);P_SPINP(d),S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • P(h);XQ(E)
  • Actual
    • Q(E);P_PINP(g)
    • Threat
      • QAR2(E)
    • Vars
      • K(e);N_SPINP(g),P_SPINP(d),S_FLIGHT::R1(B),XP(d)
      • K(e);N_SPINP(g),P-FLIGHT::R(B)
      • B(c);SBLOCK::QAR1(E),XP(g)
      • P(f);OGATEB,SBLOCK::QAB(E)
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