MESON Chess Problem Database

Problem Display
PID: 54925 (8/2PpB3/3R4/K2Nk1pp/bPP2N2/3B3n/4pr1P/2b3Q1 w - - 0 1)

Piatesi, Antonio

1st Prize, Parallele 50, 1949

8/2PpB3/3R4/K2Nk1pp/bPP2N2/3B3n/4pr1P/2b3Q1

#2

11 + 9

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bf6#
    • 1...Rf1
      • 2.Sg6#
    • 1...Rg2
      • 2.Sg6#
    • 1...Rxh2
      • 2.Sg6#
    • 1...Rf3
      • 2.Sg6#
    • 1...Bxf4
      • 2.Qa1#
    • 1...gxf4
      • 2.Qg7#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Rxf4
        • 2.Qc5#
      • 1...Sxf4
        • 2.Qxg5#
      • 1...gxf4
        • 2.Qg7#
      • 1...Bxf4!
    • 1.Se3?
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Sxf4
        • 2.Qxg5#
      • 1...gxf4
        • 2.Qg7#
      • 1...Rxf4!
    • 1.Sf6?
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Rxf4
        • 2.Qc5#
      • 1...Bxf4
        • 2.Qa1#
      • 1...Sxf4
        • 2.Qxg5#
      • 1...gxf4!
    • 1.Re6+?
      • 1...Kd4
        • 2.Bc5#
        • 2.Bf6#
        • 2.Re4#
      • 1...dxe6!
    • 1.Qxg5+?
      • 1...Kd4
        • 2.Bf6#
        • 2.Qf6#
        • 2.Qg7#
      • 1...Sxg5!
    • 1.c5?
      • threat
        • 2.Bf6#
      • 1...Kd4
        • 2.Bf6#
      • 1...Rxf4!
    • 1.c8Q?
      • threat
        • 2.Qh8#
      • 1...Kd4
        • 2.Bf6#
        • 2.Qh8#
      • 1...Rxf4!
    • 1.c8S?
      • threat
        • 2.Bf6#
      • 1...Kd4
        • 2.Bf6#
      • 1...Rxf4!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Rxf4
        • 2.Qc5#
      • 1...Bxf4
        • 2.Qa1#
      • 1...Sxf4
        • 2.Qxg5#
      • 1...gxf4
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • K(f);P_SPINR(c),S_FLIGHT::B(K)
    • R(c);::S(F)
    • R(c);XP(B)::S(F)
    • B(a);OGATE,XS(F)::QAB(A)
    • P(g);OGATE,XS(F)::QAB(A)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(F)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
        • R(c);OGATE,SBLOCK,XS(F)::QAR2(A)
        • S(d);N_GUARD,XS(F)::QAR2(A),XP(g)
        • P(g);OGATE,SBLOCK,XS(F)::QAB(A)
      • Refutation
        • B(a);XS(F)
    • Try
      • S(H);
      • Threat
        • S(F)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
        • S(d);N_GUARD,XS(F)::QAR2(A),XP(g)
        • P(g);OGATE,SBLOCK,XS(F)::QAB(A)
      • Refutation
        • R(c);XS(F)
    • Try
      • S(H);
      • Threat
        • S(F)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
        • R(c);OGATE,SBLOCK,XS(F)::QAR2(A)
        • B(a);OGATE,SBLOCK,XS(F)::QAB(A)
        • S(d);N_GUARD,XS(F)::QAR2(A),XP(g)
      • Refutation
        • P(g);XS(F)
    • Try
      • R(I);CHECK
      • Refutation
        • P(i);XR(I)
    • Try
      • Q(A);CHECK,XP(g)
      • Refutation
        • S(d);XQ(A)
    • Try
      • P(E);
      • Threat
        • B(K)
      • Vars
        • K(f);P_SPINR(c),S_FLIGHT::B(K)
      • Refutation
        • R(c);XS(F)
    • Try
      • P(J);
      • Threat
        • QAB(J)
      • Refutation
        • R(c);XS(F)
    • Try
      • P(J);
      • Threat
        • B(K)
      • Vars
        • K(f);P_SPINR(c),S_FLIGHT::B(K)
      • Refutation
        • R(c);XS(F)
  • Actual
    • S(H);
    • Threat
      • S(F)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
      • R(c);OGATE,SBLOCK,XS(F)::QAR2(A)
      • B(a);OGATE,SBLOCK,XS(F)::QAB(A)
      • S(d);N_GUARD,XS(F)::QAR2(A),XP(g)
      • P(g);OGATE,SBLOCK,XS(F)::QAB(A)
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