MESON Chess Problem Database

Problem Display
PID: 75051 (r2R4/3N4/N5p1/1p4K1/3kPPQ1/2bnq3/P5P1/1BR3B1 w - - 0 1)

Chicco, Adriano

2nd HM., Il Problema, 1931

r2R4/3N4/N5p1/1p4K1/3kPPQ1/2bnq3/P5P1/1BR3B1

#2

12 + 7

6169 Dal classico agli albori del moderno compositori scacchisti 2007
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sdc5+?
      • 1...Kc4
        • 2.Qe6#
      • 1...Rxd8!
    • 1.Sf6+?
      • 1...Kc4
        • 2.Qe6#
      • 1...Rxd8!
    • 1.Sdb8+?
      • 1...Kc4
        • 2.Qe6#
      • 1...Kxe4!
    • 1.Bxe3+?
      • 1...Kc4
        • 2.Sb6#
        • 2.Qe6#
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kxe3!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qxd3#
      • 1...Kc4
        • 2.Se5#
      • 1...Kxe4
        • 2.Sdc5#
      • 1...Sxc1
        • 2.Sdb8#
        • 2.Bxe3#
      • 1...Sxf4
        • 2.Bxe3#
      • 1...Se1
        • 2.Sdb8#
        • 2.Bxe3#
      • 1...Sb2
        • 2.Sdb8#
        • 2.Bxe3#
      • 1...Sf2
        • 2.Sdb8#
      • 1...Sb4
        • 2.Bxe3#
      • 1...Sc5
        • 2.Bxe3#
      • 1...Se5
        • 2.Bxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(K);CHECK
      • Vars
        • K(d);N_SPINQ(c),P-FLIGHT,P_SPINB(a)::QAB(H)
      • Refutation
        • R(g);XR(L)
    • Try
      • S(K);CHECK
      • Vars
        • K(d);N_SPINQ(c),P-FLIGHT,P_SPINB(a)::QAB(H)
      • Refutation
        • R(g);XR(L)
    • Try
      • S(K);CHECK
      • Vars
        • K(d);N_SPINQ(c),P-FLIGHT,P_SPINB(a)::QAB(H)
      • Refutation
        • K(d);N_SPINQ(c),P-FLIGHT,P_SPINS(b),XP(F)
    • Try
      • B(C);CHECK,N_SPINP(G),XQ(c)
      • Vars
        • K(d);P-FLIGHT,P_SPINS(b),XP(F)::QAB1(H)
      • Refutation
        • K(d);S_FLIGHT,XB(C)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XS(b)
    • Vars
      • K(d);N_SPINQ(c),P-FLIGHT,P_SPINB(a),P_SPINS(b)::S(K)
      • K(d);P-FLIGHT,P_SPINS(b),XP(F)::S(K)
      • S(b);XP(G)::B(C),XQ(c)
      • S(b);N_SPINQ(c)::R(L)+S(K)
      • S(b);::B(C),XQ(c)
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