MESON Chess Problem Database

Problem Display
PID: 269876 (2n1N3/p7/pk3P1R/N3Q1bR/4p3/2P5/3B1qn1/Kb6 w - - 0 1)

Chicco, Adriano

Els Escacs a Catalunya, 1932

2n1N3/p7/pk3P1R/N3Q1bR/4p3/2P5/3B1qn1/Kb6

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd2
      • 2.Qc7#
      • 2.Qb8#
    • 1...Be3
      • 2.Qc7#
      • 2.Qb8#
    • 1...Bh4
      • 2.Qc7#
      • 2.Qb8#
    • 1...Bxf6
      • 2.Qc7#
      • 2.Qb8#
    • 1...Bxh6
      • 2.Qc7#
      • 2.Qb8#
  • Tries
    • 1.Rxg5?
      • threat
        • 2.Qc7#
        • 2.Qb8#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qg3
        • 2.Qd4#
        • 2.Qc5#
      • 1...Qf4
        • 2.Qd4#
        • 2.Qc5#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Qf5!
    • 1.Qd4+?
      • 1...Kxa5
        • 2.Qb4#
      • 1...Kb5
        • 2.Qb4#
      • 1...Qxd4!
    • 1.Qd6+?
      • 1...Kxa5
        • 2.Qb4#
      • 1...Kb5
        • 2.Qb4#
      • 1...Sxd6!
    • 1.Qb8+?
      • 1...Kxa5
        • 2.Qb4#
      • 1...Kc5!
    • 1.f7+?
      • 1...Bf6
        • 2.Qc7#
        • 2.Qb8#
      • 1...Bxh6
        • 2.Qc7#
        • 2.Qb8#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Qf6!
  • Keys
    • 1.c4!
      • threat
        • 2.Qc7#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Qxf6
        • 2.Qd4#
      • 1...Bxf6
        • 2.Qb2#
      • 1...Qg3
        • 2.Qd4#
      • 1...Qc5
        • 2.Qb8#
      • 1...Qf4
        • 2.Qd4#
      • 1...Bf4
        • 2.Qb2#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);XB(e)
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);N_GUARD::QAB1(E),XQ(b)
        • S(i);N_GUARD::QAR2(E),XS(i)
      • Refutation
        • Q(b);
    • Try
      • Q(E);CHECK
      • Vars
        • K(g);P_SPINB(e),S_FLIGHT,XS(D)::QAB1(E)
        • K(g);P-FLIGHT,P_SPINB(e)::QAR1(E)
      • Refutation
        • Q(b);P_PINP(C),XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(g);P_SPINB(e),S_FLIGHT,XS(D)::QAB1(E)
        • K(g);P-FLIGHT,P_SPINB(e)::QAR1(E)
      • Refutation
        • S(i);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(g);OGATE,P_SPINB(e),S_FLIGHT,XS(D)::QAB1(E)
      • Refutation
        • K(g);P_SPINB(e),S_FLIGHT
    • Try
      • P(G);CHECK
      • Vars
        • S(i);N_GUARD,P_SPINS(i)::R(H),XS(i)
      • Refutation
        • Q(b);P_SPINQ(b)
  • Actual
    • P(C);
    • Threat
      • QAB1(E)
    • Vars
      • Q(b);CHECK,N_GUARD::QAB(E),XQ(b)
      • Q(b);N_GUARD,P_PINQ(E),P_SPINQ(b),XP(G)::QAB(E)
      • B(e);P_PINQ(E),P_SPINB(e),XP(G)::QAR(E)
      • Q(b);N_GUARD::QAB(E)
      • Q(b);SBLOCK::QAR2(E)
      • B(e);::QAR(E)
      • S(i);N_GUARD::QAR2(E),XS(i)
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