MESON Chess Problem Database

Problem Display
PID: 147683 (B3Rr2/PK1Npp2/8/1pPn1pb1/Rn2kP2/3p3N/QB1qpPP1/8 w - - 0 1)

Henriksen, Thorleif Cammillo

L'Italia Scacchistica, 1930

B3Rr2/PK1Npp2/8/1pPn1pb1/Rn2kP2/3p3N/QB1qpPP1/8

#2

13 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Rxb4#
    • 1...Se3
      • 2.f3#
    • 1...Sxf4
      • 2.Sxg5#
    • 1...Sb6
      • 2.Kxb6#
    • 1...Sf6
      • 2.Rxe7#
    • 1...Sc7
      • 2.Kxc7#
    • 1...bxa4
      • 2.Qc4#
    • 1...e5
      • 2.Rxe5#
  • Tries
    • 1.Kc8?
      • threat
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Qxb2
        • 2.Qxd5#
      • 1...bxa4
        • 2.Qc4#
      • 1...Qc3
        • 2.Qxd5#
      • 1...Rxe8+!
    • 1.Sf6+?
      • 1...Sxf6
        • 2.Rxe7#
      • 1...Bxf6!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Qxd5#
      • 1...Sxf4
        • 2.Sxg5#
      • 1...Sxb6
        • 2.Kxb6#
      • 1...bxa4
        • 2.Qc4#
      • 1...Sc3
        • 2.Rxb4#
      • 1...Se3
        • 2.f3#
      • 1...Sf6
        • 2.Rxe7#
      • 1...Sc7
        • 2.Kxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(g);N_GUARD,S_CUTQ(a)::R(F),XS(d)
    • S(g);SBLOCK::P(C)
    • S(g);SBLOCK,XP(G)::S(E),XB(i)
    • S(g);::B(L)+K(J),XS(g)
    • S(g);N_GUARD,S_CUTB(i)::R(M),XP(j)
    • P(f);N_GUARD,N_SPINS(d),XR(F)::QAR2(A)
    • P(j);OGATE::R1(M),XP(j)
  • Tries
    • Try
      • K(J);P_SPINR(M),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XB(B)::QAB1(A),XS(g)
        • P(f);N_GUARD,N_SPINS(d),P_SPINS(g),XR(F)::QAR2(A)
        • Q(a);P_PINP(H)::QAB1(A),XS(g)
      • Refutation
        • R(l);CHECK,N_SPINP(j),XR(M)
    • Try
      • S(K);CHECK
      • Vars
        • S(g);XS(K)::R(M),XP(j)
      • Refutation
        • B(i);XS(K)
  • Actual
    • S(K);
    • Threat
      • QAB1(A),XS(g)
    • Vars
      • S(g);SBLOCK,XP(G)::S(E),XB(i)
      • S(g);XS(K)::B(L)+K(J),XS(g)
      • P(f);N_GUARD,N_SPINS(d),XR(F)::QAR2(A)
      • S(g);N_GUARD,S_CUTQ(a)::R(F),XS(d)
      • S(g);SBLOCK::P(C)
      • S(g);N_GUARD,S_CUTB(i)::R(M),XP(j)
      • S(g);::B(L)+K(J),XS(g)
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