MESON Chess Problem Database

Problem Display
PID: 44896 (7N/p2p1p2/Q2PkB2/2p4N/2p1P1p1/2PpKpP1/3RPR2/8 w - - 0 1)

Retter, Yosef

6th Place, Match: France - Israel, 1983-1984

7N/p2p1p2/Q2PkB2/2p4N/2p1P1p1/2PpKpP1/3RPR2/8

#2

12 + 9

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...dxe2
      • 2.Qxc4#
    • 1...fxe2
      • 2.Sg7#
  • Tries
    • 1.Kf4?
      • 1...dxe2
        • 2.Qxc4#
      • 1...fxe2!
    • 1.Rd1?
      • 1...dxe2
        • 2.Qxc4#
      • 1...fxe2
        • 2.Sg7#
      • 1...d2!
    • 1.Rf1?
      • 1...dxe2
        • 2.Qxc4#
      • 1...fxe2
        • 2.Sg7#
      • 1...f2!
  • Keys
    • 1.e5!
      • 1...Kd5
        • 2.Sf4#
      • 1...Kf5
        • 2.Sg7#
      • 1...dxe2
        • 2.Sg7#
      • 1...fxe2
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);XP(B)::QAB(I),XP(c)
    • P(b);XP(B)::S(H)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(a);XP(B)::QAB(I),XP(c)
      • Refutation
        • P(b);XP(B)
    • Try
      • R(A);
      • Vars
        • P(a);XP(B)::QAB(I),XP(c)
        • P(b);XP(B)::S(H)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • P(a);XP(B)::QAB(I),XP(c)
        • P(b);XP(B)::S(H)
      • Refutation
        • P(b);
  • Actual
    • P(G);
    • Vars
      • K(f);P_SPINP(a),S_FLIGHT::S(H)
      • K(f);P_SPINP(b),S_FLIGHT::S(H)
      • P(a);XP(B)::S(H)
      • P(b);XP(B)::QAB(I),XP(c)
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