MESON Chess Problem Database

Problem Display
PID: 261680 (n1rr4/2n5/p2B4/Np1kPQ1R/8/3P4/4N1b1/1K4b1 w - - 0 1)

Somma, Francesco

L'Italia Scacchistica, 1929

n1rr4/2n5/p2B4/Np1kPQ1R/8/3P4/4N1b1/1K4b1

#2

8 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.e6#
    • 1...Bd4
      • 2.Sf4#
    • 1...Be4
      • 2.dxe4#
    • 1...Se8
      • 2.Qf7#
  • Keys
    • 1.Qg4!
      • threat
        • 2.Sc3#
      • 1...Rxd6
        • 2.e6#
      • 1...Bd4
        • 2.Sf4#
      • 1...Be4
        • 2.dxe4#
      • 1...Se6
        • 2.Qxg2#
      • 1...Se8
        • 2.Qg8#
      • 1...b4
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(i);SBLOCK,XB(H)::QAR(F)+P(E)
    • B(a);SBLOCK::S(B)
    • B(b);OGATE,P_PINP(C)::P(C),XB(b)
    • S(f);N_GUARD::QAB(F)
  • Actual
    • Q(F);
    • Threat
      • S(B)
    • Vars
      • R(i);SBLOCK,XB(H)::R(G)+P(E)
      • B(a);SBLOCK::S(B)
      • B(b);OGATE,P_PINP(C)::P(C),XB(b)
      • S(f);SBLOCK::QAB(F),XB(b)
      • S(f);N_GUARD,S_CUTR(i)::QAB(F)
      • P(c);N_GUARD::QAB1(F)
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