MESON Chess Problem Database

Problem Display
PID: 157533 (7B/4p3/K1N1p2r/1P1pR1b1/1Pk1Nn2/P2p1P2/3pn3/3B4 w - - 0 1)

Petite, Efren

Die Schwalbe, 1954

7B/4p3/K1N1p2r/1P1pR1b1/1Pk1Nn2/P2p1P2/3pn3/3B4

#2

10 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Sxd2#
    • 1...Sd4
      • 2.Sa5#
    • 1...dxe4
      • 2.Rc5#
    • 1...d4
      • 2.Sa5#
      • 2.Rc5#
  • Keys
    • 1.Rxd5!
      • threat
        • 2.Rc5#
      • 1...Kxd5
        • 2.Bb3#
      • 1...Sxd5
        • 2.Sa5#
      • 1...exd5
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(b);SBLOCK::S(E),XP(a)
    • S(b);SBLOCK::S(I)
    • P(f);OGATE,XS(E)::R1(G)
  • Actual
    • R(G);XP(f)
    • Threat
      • R1(G)
    • Vars
      • K(d);S_FLIGHT,XR(G)::B(A)
      • S(e);SBLOCK,XR(G)::S(I)
      • P(h);P_PINS(I),SBLOCK,XR(G)::S(E),XP(a)
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