MESON Chess Problem Database

Problem Display
PID: 193740 (2n5/1rB1n3/5Rp1/2kP2R1/P3P3/P1K5/4P1p1/N4b2 w - - 0 1)

Cerioli, Antonio

L'Italia Scacchistica, 1916

2n5/1rB1n3/5Rp1/2kP2R1/P3P3/P1K5/4P1p1/N4b2

#2

10 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3+
      • 2.Sxb3#
    • 1...Rb4
      • 2.axb4#
    • 1...Ra7
      • 2.Sb3#
    • 1...Rxc7
      • 2.Sb3#
    • 1...Sxd5+
      • 2.Rxd5#
    • 1...Sf5
      • 2.Rc6#
    • 1...Sc6
      • 2.Rxc6#
      • 2.dxc6#
    • 1...Sg8
      • 2.Rc6#
    • 1...Sb6
      • 2.Sb3#
      • 2.Bd6#
  • Tries
    • 1.Bb6+?
      • 1...Sxb6
        • 2.Sb3#
      • 1...Rxb6!
  • Keys
    • 1.Bh2!
      • threat
        • 2.Bg1#
      • 1...Rb3+
        • 2.Sxb3#
      • 1...Sxd5+
        • 2.Rxd5#
      • 1...Sc6
        • 2.Rxc6#
      • 1...g1Q
        • 2.Bxg1#
      • 1...g1S
        • 2.Bxg1#
      • 1...g1B
        • 2.Bxg1#
      • 1...g1R
        • 2.Bxg1#
      • 1...Rb4
        • 2.axb4#
      • 1...Sf5
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(e);CHECK,N_GUARD::S(A),XR(e)
    • R(e);OGATE::P(C),XR(e)
    • R(e);N_GUARD::S(A)
    • R(e);N_GUARD,XB(J)::S(A)
    • S(f);CHECK,OGATE,P_SPINS(f),XP(G)::R1(H),XS(f)
    • S(f);N_GUARD::R1(I)
  • Tries
    • Try
      • B(J);CHECK
      • Vars
        • S(g);XB(J)::S(A)
      • Refutation
        • R(e);XB(J)
  • Actual
    • B(J);
    • Threat
      • B(J)
    • Vars
      • R(e);CHECK,N_GUARD::S(A),XR(e)
      • S(f);CHECK,OGATE,P_SPINS(f),XP(G)::R1(H),XS(f)
      • S(f);N_GUARD::R1(I),XS(f)
      • P(b);::B(J),XQ(b)
      • P(b);::B(J),XS(b)
      • P(b);::B(J),XB(b)
      • P(b);::B(J),XR(b)
      • R(e);OGATE::P(C),XR(e)
      • S(f);N_GUARD::R1(I)
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