MESON Chess Problem Database

Problem Display
PID: 265125 (4b1B1/3p1n2/pR1p2pp/Rn1k1p2/1r5p/B2P1N1K/qP6/2Q5 w - - 0 1)

Cacciari, Europe

4th HM., El Ajedrez Espanol, 1946

4b1B1/3p1n2/pR1p2pp/Rn1k1p2/1r5p/B2P1N1K/qP6/2Q5

#2

9 + 13

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.Rxd6#
    • 1...Rb3
      • 2.Rxd6#
      • 2.Qc4#
    • 1...Ra4
      • 2.Rxd6#
    • 1...Rc4
      • 2.Rxd6#
    • 1...Rd4
      • 2.Rxd6#
    • 1...Re4
      • 2.Rxd6#
    • 1...Rf4
      • 2.Rxd6#
    • 1...Rg4
      • 2.Rxd6#
  • Tries
    • 1.Bxb4?
      • threat
        • 2.Rxd6#
      • 1...Qxa5
        • 2.Qc4#
      • 1...Ke6!
    • 1.Qc4+?
      • 1...Rxc4
        • 2.Rxd6#
      • 1...Qxc4!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qxd6#
      • 1...Kc5
        • 2.Qd4#
      • 1...Ke6
        • 2.Qe5#
      • 1...Rxf4
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(b);XP(B)::R1(H),XP(h)
    • R(b);::R1(H),XP(h)
  • Tries
    • Try
      • B(C);XR(b)
      • Threat
        • R1(H),XP(h)
      • Vars
        • Q(a);N_GUARD,N_SPINS(d),P_SPINS(l),XR(G)::QAB1(A)
      • Refutation
        • K(e);N_SPINS(d),P_SPINP(h),P_SPINS(l),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • R(b);XQ(A)::R1(H),XP(h)
      • Refutation
        • Q(a);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(h)
    • Vars
      • K(e);N_GUARD,P-FLIGHT,P_SPINR(b)::QAB1(A)
      • K(e);N_SPINS(d),P_SPINP(h),P_SPINS(l),S_FLIGHT::QAR1(A)
      • R(b);XQ(A)::R1(H),XP(h)
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