MESON Chess Problem Database

Problem Display
PID: 6695 (1QRb1B2/2r1P3/1p3p1n/2kB4/5P2/P1N5/1NR5/4K3 w - - 0 1)

Chicco, Adriano

1st Prize, Weenink MT, 1932

1QRb1B2/2r1P3/1p3p1n/2kB4/5P2/P1N5/1NR5/4K3

#2

11 + 6

249 Schach-Echo 1933
3098 FIDE Album (1914-1944) (I) 1971
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.exd8Q#
      • 2.exd8R#
  • Tries
    • 1.Sd3+?
      • 1...Kd6
        • 2.Rxd8#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Kd4!
    • 1.Sba4+?
      • 1...Kd6
        • 2.Rxd8#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Kd4!
    • 1.Rxc7+?
      • 1...Kd4
        • 2.Qxb6#
      • 1...Kd6
        • 2.Sc4#
        • 2.Qxb6#
        • 2.Qxd8#
        • 2.exd8Q#
        • 2.exd8S#
        • 2.exd8B#
        • 2.exd8R#
        • 2.e8S#
      • 1...Bxc7!
    • 1.e8Q+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Be7!
    • 1.e8R+?
      • 1...Kd4
        • 2.Re4#
      • 1...Be7!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Sb5#
      • 1...Rxe7+
        • 2.Se2#
      • 1...Kd4
        • 2.Qxb6#
      • 1...Kxc6
        • 2.e8Q#
        • 2.e8B#
      • 1...Kd6
        • 2.exd8S#
      • 1...Rxc6
        • 2.exd8Q#
        • 2.exd8R#
      • 1...b5
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::PXB(f)=Q
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);N_SPINR(e),S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);N_SPINR(e),S_FLIGHT
    • Try
      • R(J);CHECK,XR(e)
      • Vars
        • K(a);S_FLIGHT::QAB(I),XP(b)
      • Refutation
        • B(f);XR(J)
    • Try
      • P(H);CHECK
      • Vars
        • K(a);N_SPINR(e),S_FLIGHT::QAR1(H)
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • P(H);CHECK
      • Vars
        • K(a);N_SPINR(e),S_FLIGHT::R1(H)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • B(G);N_PINR(e)
    • Threat
      • R(C)+S(E)
    • Vars
      • R(e);CHECK,P_SPINR(e),XP(H)::R(C)+S(E)
      • K(a);S_FLIGHT::QAB(I),XP(b)
      • K(a);P-FLIGHT,P_SPINR(e),XB(G)::P=Q
      • K(a);P_SPINR(e),S_FLIGHT::PXB(f)=S
      • R(e);N_GUARD,P_SPINR(e),XB(G)::PXB(f)=Q
      • P(b);::R(C)+S(E),XP(b)
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