MESON Chess Problem Database

Problem Display
PID: 108522 (4Rr2/b7/4p1pB/2Np4/r4P2/2p1kN1Q/n1R1P3/6K1 w - - 0 1)

Kapros, Jorge Marcelo

Revista Joker, 1973

4Rr2/b7/4p1pB/2Np4/r4P2/2p1kN1Q/n1R1P3/6K1

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Rxe6#
      • 2.Qxe6#
    • 1...Rd4
      • 2.Se1#
      • 2.Sh2#
      • 2.Sh4#
      • 2.Se5#
    • 1...Raxf4
      • 2.Rxe6#
      • 2.Qxe6#
    • 1...Ra5
      • 2.Rxe6#
      • 2.Qxe6#
    • 1...Sb4
      • 2.Rxe6#
      • 2.Qxe6#
    • 1...d4
      • 2.Se1#
      • 2.Sh2#
      • 2.Sh4#
      • 2.Se5#
      • 2.Rxe6#
      • 2.Qxe6#
  • Tries
    • 1.Sd2+?
      • 1...Kd4
        • 2.Scb3#
        • 2.Sxe6#
      • 1...Kxe2!
    • 1.Rxc3+?
      • 1...Kxe2
        • 2.Qf1#
      • 1...Sxc3!
    • 1.f5+?
      • 1...Rf4
        • 2.Rxe6#
      • 1...g5!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sfg5#
      • 1...Ke4+
        • 2.Sc5#
      • 1...Raxf4
        • 2.Sxf8#
      • 1...Rfxf4
        • 2.Sed4#
      • 1...g5
        • 2.Sfxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);P-FLIGHT,P_PINS(G),XP(C)
    • Try
      • R(B);CHECK,XP(b)
      • Vars
        • K(c);P-FLIGHT,P_PINS(G),XP(C)::QAB1(E)
      • Refutation
        • S(a);XR(B)
    • Try
      • P(F);CHECK
      • Vars
        • R(d);P_SPINR(d)::R(I),XP(f)
      • Refutation
        • P(g);N_SPINP(f),P_SPINP(g)
  • Actual
    • S(G);XP(f)
    • Threat
      • QAR(E)+S(D)
    • Vars
      • K(c);CHECK,P-FLIGHT::R(I)+S(G),DCHECK
      • R(d);N_GUARD,P_SPINR(d),XP(F)::R(I)+S(G),XR(i)
      • R(i);N_GUARD,P_SPINR(i),XP(F)::R(I)+S(G)
      • P(g);::QAR(E)+S(D),XP(g)
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