MESON Chess Problem Database

Problem Display
PID: 90411 (3r4/8/3N2p1/2p5/3k1NKB/Q1p2P2/8/8 w - - 0 1)

Dombrovskis, Alfreds A

Die Schwalbe, 1960

3r4/8/3N2p1/2p5/3k1NKB/Q1p2P2/8/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qxc3#
    • 1...Ke5
      • 2.Qxc5#
    • 1...c2
      • 2.Bf6#
  • Keys
    • 1.Se4!
      • threat
        • 2.Qxc5#
        • 2.Qxc3#
      • 1...Ke3
        • 2.Bf2#
      • 1...Kc4
        • 2.Qa4#
      • 1...Ke5
        • 2.Bf6#
      • 1...Rd5
        • 2.Qxc3#
      • 1...Rc8
        • 2.Qxc3#
      • 1...c2
        • 2.Qxc5#
        • 2.Qc3#
      • 1...c4
        • 2.Qc5#
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(b);P_SPINP(a),S_FLIGHT::QAR2(A),XP(a)
    • K(b);S_FLIGHT::QAR2(A),XP(c)
    • P(a);::B(E)
  • Actual
    • S(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::B(E)
      • K(b);P-FLIGHT::QAR2(A)
      • K(b);S_FLIGHT::B(E)
      • R(e);::QAB1(A),XP(a)
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