MESON Chess Problem Database

Problem Display
PID: 214056 (4nK2/1Q5b/4R3/1Nppp1B1/Rn1bkpP1/7r/3PP3/8 w - - 0 1)

Salardini, Erio

Suomen Shakki, 1933

4nK2/1Q5b/4R3/1Nppp1B1/Rn1bkpP1/7r/3PP3/8

#2

9 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Qxh7#
    • 1...Rb3
      • 2.Qxh7#
    • 1...Rc3
      • 2.Qxh7#
    • 1...Rd3
      • 2.Qxh7#
    • 1...Re3
      • 2.Qxh7#
    • 1...Rf3
      • 2.Qxh7#
    • 1...Rg3
      • 2.Qxh7#
    • 1...Be3
      • 2.d3#
    • 1...Sd3
      • 2.Sc3#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sf6
      • 2.Sd6#
    • 1...Sc7
      • 2.Sd6#
    • 1...Sg7
      • 2.Sd6#
  • Tries
    • 1.Sc3+?
      • 1...Rxc3
        • 2.Qxh7#
      • 1...Bxc3!
    • 1.Rxe5+?
      • 1...Kxe5
        • 2.Qe7#
      • 1...Bxe5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxf4#
      • 1...Rf3
        • 2.Qxh7#
      • 1...Be3
        • 2.d3#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sf6
        • 2.Sd6#
      • 1...f3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::QAB(H),XB(i)
    • B(c);P_SPINS(b),SBLOCK,S_CUTR(a)::P(A)
    • S(b);P_SPINB(c),S_CUTR(a)::S(E)
    • S(j);N_GUARD::S(E),XS(j)
    • S(j);N_GUARD::S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • R(a);XS(E)::QAB(H),XB(i)
      • Refutation
        • B(c);P_SPINS(b),XS(E)
    • Try
      • R(G);CHECK,XP(h)
      • Vars
        • K(d);N_SPINP(g),P-FLIGHT,XR(G)::QAR2(H)
      • Refutation
        • B(c);P_SPINS(b),XR(G)
  • Actual
    • Q(H);N_PINP(g),P_PINP(h)
    • Threat
      • QAR1(H),XP(e)
    • Vars
      • R(a);N_GUARD::QAB(H),XB(i)
      • B(c);P_SPINS(b),SBLOCK,S_CUTR(a)::P(A)
      • B(i);N_GUARD::QAB1(H),XB(i)
      • S(b);P_SPINB(c),S_CUTR(a)::S(E)
      • S(j);N_GUARD::S(E)
      • P(e);::QAR1(H)
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