MESON Chess Problem Database

Problem Display
PID: 138783 (8/8/8/8/5K2/R4Q2/R3P2k/6n1 w - - 0 1)

Aloni, Yoel

3rd HM., StrateGems 01. Miniature Ty., 2010

8/8/8/8/5K2/R4Q2/R3P2k/6n1

#2

5 + 2

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Ra1?
      • 1...Sxe2+
        • 2.Qxe2#
      • 1...Sh3+
        • 2.Qxh3#
      • 1...Sxf3!
  • Keys
    • 1.Qf1!
      • 1...Sxe2+
        • 2.Rxe2#
      • 1...Sh3+
        • 2.Rxh3#
      • 1...Kh1
        • 2.Rh3#
      • 1...Sf3
        • 2.exf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Vars
        • S(a);CHECK,OGATE,XP(B)::QAR(D),XS(a)
        • S(a);CHECK,N_GUARD::QAR1(D),XS(a)
      • Refutation
        • S(a);XQ(D)
  • Actual
    • Q(D);
    • Vars
      • S(a);CHECK,OGATE,P_SPINS(a),XP(B)::R(A),XS(a)
      • S(a);CHECK,N_GUARD::R1(C),XS(a)
      • K(b);P-FLIGHT,P_SPINS(a)::R(C)
      • S(a);OGATE::R(A)+P(B),XS(a)
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