MESON Chess Problem Database

Problem Display
PID: 71375 (3R3B/2p5/3r1n2/4Prp1/pPBk2bR/3N1pN1/1P6/2Q4K w - - 0 1)

Ahues, Herbert Siegfried Oskar

Probleemblad, 2006

3R3B/2p5/3r1n2/4Prp1/pPBk2bR/3N1pN1/1P6/2Q4K

#2

11 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Sf2?
      • threat
        • 2.Qc3#
      • 1...Kxe5
        • 2.Qe3#
      • 1...Sd5
        • 2.Sxf5#
      • 1...Se4!
    • 1.Sf4?
      • threat
        • 2.Qc3#
      • 1...Kxe5
        • 2.Qe3#
      • 1...Se4
        • 2.Se6#
      • 1...Sd5!
    • 1.Rxd6+?
      • 1...Sd5
        • 2.Rxd5#
      • 1...cxd6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qc3#
      • 1...Kxe5
        • 2.Qe3#
      • 1...Se4
        • 2.Se6#
      • 1...Sd5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);N_SPINB(d),N_SPINR(g),P_SPINS(h),S_FLIGHT,XP(I)::QAR2(A)
        • S(h);N_SPINR(g)::S(E),XR(e)
      • Refutation
        • S(h);N_SPINB(d)
    • Try
      • S(D);N_PINB(d)
      • Threat
        • QAB1(A)
      • Vars
        • K(c);N_SPINR(g),P_SPINS(h),S_FLIGHT,XP(I)::QAR2(A)
        • S(h);::S(D)
      • Refutation
        • S(h);N_SPINR(g)
    • Try
      • R(J);CHECK,XR(g)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::R1(J),XS(h)
      • Refutation
        • P(i);XR(J)
  • Actual
    • S(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(c);N_SPINB(d),N_SPINR(g),P_SPINS(h),S_FLIGHT,XP(I)::QAR2(A)
      • S(h);N_SPINB(d)::S(D)
      • S(h);N_SPINR(g)::S(E),XR(e)
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