MESON Chess Problem Database

Problem Display
PID: 147771 (4K3/1B6/3P1Rp1/4k2N/2pqP2r/1Nn3n1/3Q3r/B2bR1b1 w - - 0 1)

Salardini, Erio

1st Prize, Dutch East Indies Chess Association, 1929

4K3/1B6/3P1Rp1/4k2N/2pqP2r/1Nn3n1/3Q3r/B2bR1b1

#2

10 + 10

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Qd5#
    • 1...Qe3
      • 2.Qd5#
    • 1...Qb6
      • 2.Qd5#
    • 1...Qa7
      • 2.Qd5#
    • 1...Qxe4
      • 2.Qd5#
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qxd6
      • 2.Qxd6#
    • 1...Rf2
      • 2.Qxd4#
    • 1...Rh3
      • 2.Qf4#
    • 1...Rxe4
      • 2.Qf4#
    • 1...Rf4
      • 2.Qxf4#
    • 1...Rxh5
      • 2.Qf4#
    • 1...Bg4
      • 2.Qf4#
    • 1...Sb1
      • 2.Qa5#
    • 1...Sa2
      • 2.Qa5#
    • 1...Sce2
      • 2.Qa5#
    • 1...Scxe4
      • 2.Qa5#
    • 1...Sf1
      • 2.Qg5#
    • 1...Sh1
      • 2.Qg5#
    • 1...Sge2
      • 2.Qg5#
    • 1...Sgxe4
      • 2.Qg5#
    • 1...Sxh5
      • 2.Qg5#
  • Tries
    • 1.Kd7?
      • threat
        • 2.Re6#
      • 1...Qxd6+
        • 2.Qxd6#
      • 1...Qxe4
        • 2.Qd5#
      • 1...Rxe4
        • 2.Qf4#
      • 1...Scxe4
        • 2.Qa5#
      • 1...Sgxe4
        • 2.Qg5#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Bg4+!
  • Keys
    • 1.Kf7!
      • threat
        • 2.Re6#
      • 1...Qd5+
        • 2.Qxd5#
      • 1...Qxe4
        • 2.Qd5#
      • 1...Qxd6
        • 2.Qxd6#
      • 1...Rxe4
        • 2.Qf4#
      • 1...Scxe4
        • 2.Qa5#
      • 1...Sgxe4
        • 2.Qg5#
      • 1...Qf2
        • 2.Qd5#
      • 1...Rf2
        • 2.Qxd4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Bg4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • Q(g);OGATE,P_SPINS(d)::QAR1(C)
    • Q(g);OGATE,P_SPINQ(g),P_SPINS(d),XP(E)::QAR1(C)
    • Q(g);OGATE,P_SPINS(d)::QAR1(C),XQ(g)
    • Q(g);OGATE,P_SPINS(d),XP(G)::QAB1(C),XQ(g)
    • R(c);S_CUTB(b)::QAB1(C),XQ(g)
    • R(h);N_GUARD::QAB1(C)
    • R(h);N_GUARD,P_SPINR(h),XP(E)::QAB1(C)
    • R(h);N_GUARD::QAB1(C),XR(h)
    • R(h);N_GUARD,XS(F)::QAB1(C)
    • B(a);S_CUTR(h)::QAB1(C)
    • S(d);OGATE,P_SPINQ(g)::QAR(C)
    • S(d);OGATE,P_SPINQ(g),P_SPINS(d),XP(E)::QAR(C)
    • S(e);N_GUARD::QAR2(C)
    • S(e);N_GUARD,P_SPINS(e),XP(E)::QAR2(C)
    • S(e);N_GUARD,XS(F)::QAR2(C)
  • Tries
    • Try
      • K(J);P_SPINP(G),S_FLIGHT
      • Threat
        • R1(H)
      • Vars
        • Q(g);CHECK,OGATE,P_SPINS(d),XP(G)::QAB1(C),XQ(g)
        • Q(g);N_PINP(G),OGATE,P_SPINQ(g),P_SPINS(d),XP(E)::QAR1(C)
        • R(h);N_GUARD,P_SPINR(h),XP(E)::QAB1(C)
        • S(d);OGATE,P_SPINQ(g),P_SPINS(d),XP(E)::QAR(C)
        • S(e);N_GUARD,P_SPINS(e),XP(E)::QAR2(C)
        • Q(g);OGATE,P_SPINS(d)::QAR1(C),XQ(g)
      • Refutation
        • B(a);CHECK
  • Actual
    • K(J);S_FLIGHT
    • Threat
      • R1(H)
    • Vars
      • Q(g);CHECK,OGATE,P_SPINS(d)::QAR1(C),XQ(g)
      • Q(g);OGATE,P_SPINQ(g),P_SPINS(d),XP(E)::QAR1(C)
      • Q(g);OGATE,P_SPINS(d),XP(G)::QAB1(C),XQ(g)
      • R(h);N_GUARD,P_SPINR(h),XP(E)::QAB1(C)
      • S(d);OGATE,P_SPINQ(g),P_SPINS(d),XP(E)::QAR(C)
      • S(e);N_GUARD,P_SPINS(e),XP(E)::QAR2(C)
      • Q(g);OGATE,P_PINR(H),P_SPINS(d)::QAR1(C)
      • R(c);P_PINR(H),S_CUTB(b)::QAB1(C),XQ(g)
      • R(h);N_GUARD,P_PINR(H)::QAB1(C),XR(h)
      • B(a);S_CUTR(h)::QAB1(C)
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