MESON Chess Problem Database

Problem Display
PID: 144230 (7B/1N4nK/r3P1R1/3b1k1p/3PrP2/2Q3P1/2RN4/1B6 w - - 0 1)

Segers, Marcel

Magyar Sakkvilag, 1931

7B/1N4nK/r3P1R1/3b1k1p/3PrP2/2Q3P1/2RN4/1B6

#2

12 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sd6#
    • 1...Ra2
      • 2.Sd6#
    • 1...Ra3
      • 2.Sd6#
    • 1...Ra4
      • 2.Sd6#
    • 1...Ra5
      • 2.Sd6#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Ra7
      • 2.Sd6#
    • 1...Ra8
      • 2.Sd6#
    • 1...Bc6
      • 2.Sd6#
  • Tries
    • 1.g4+?
      • 1...Kxf4
        • 2.Qf3#
      • 1...hxg4!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qf8#
      • 1...Rexe6
        • 2.Rc5#
      • 1...Raxe6
        • 2.Sd6#
      • 1...Bxe6
        • 2.Rc5#
      • 1...Sxe6
        • 2.Rg5#
      • 1...Ra8
        • 2.Sd6#
      • 1...Se8
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 8
  • Sets
    • R(e);N_GUARD::S(J)
    • R(e);N_GUARD::S(J),XR(e)
    • B(b);S_CUTR(e)::S(J)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(G)::QAR1(D)
      • Refutation
        • P(d);XP(E)
  • Actual
    • Q(D);
    • Threat
      • QAR(D)
    • Vars
      • R(a);OGATEB,P_SPINR(a),XP(H)::B(A)+R(B)
      • R(e);N_GUARD,P_SPINR(e),XP(H)::S(J)
      • B(b);OGATEB,P_SPINB(b),XP(H)::R(B)
      • S(f);P_SPINS(f),XP(H)::R1(I)
      • R(e);N_GUARD::S(J)
      • S(f);::R1(I)
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