MESON Chess Problem Database

Problem Display
PID: 64021 (2Q1n3/2n1pP2/2p5/2R1NP2/1bPPk3/r4pPK/3R1B2/5B2 w - - 0 1)

Piatesi, Antonio

3rd Prize, L'Italia Scacchistica, 1978

2Q1n3/2n1pP2/2p5/2R1NP2/1bPPk3/r4pPK/3R1B2/5B2

#2

12 + 8

3750 FIDE Album (1977-1979) 1984
14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bd3#
    • 1...Ra2
      • 2.Bd3#
    • 1...Rd3
      • 2.Bxd3#
    • 1...Ra4
      • 2.Bd3#
    • 1...Ra5
      • 2.Bd3#
    • 1...Ra6
      • 2.Bd3#
    • 1...Ra7
      • 2.Bd3#
    • 1...Ra8
      • 2.Bd3#
    • 1...Bc3
      • 2.Bd3#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Re5#
      • 1...Bxc5
        • 2.Sxc5#
      • 1...Sd5
        • 2.Qe6#
      • 1...e5
        • 2.Rxe5#
      • 1...Ra5!
    • 1.Sg4?
      • threat
        • 2.Re5#
      • 1...Ra5
        • 2.Bd3#
      • 1...Sd5
        • 2.Qe6#
      • 1...e5
        • 2.Rxe5#
      • 1...Bxc5!
    • 1.Sxc6?
      • threat
        • 2.Re5#
      • 1...Ra5
        • 2.Bd3#
      • 1...Sd5
        • 2.Qe6#
      • 1...e5
        • 2.Rxe5#
      • 1...Bxc5!
    • 1.Sg6?
      • threat
        • 2.Re5#
      • 1...Ra5
        • 2.Bd3#
      • 1...Sd5
        • 2.Qe6#
      • 1...e5
        • 2.Rxe5#
      • 1...Bxc5!
    • 1.Sd7?
      • threat
        • 2.Re5#
      • 1...Bxc5
        • 2.Sxc5#
      • 1...e5
        • 2.Rxe5#
      • 1...Ra5
        • 2.Bd3#
      • 1...Sd5!
  • Keys
    • 1.Sxf3!
      • threat
        • 2.Sg5#
      • 1...Kxf3
        • 2.Bg2#
      • 1...Rxf3
        • 2.Re5#
      • 1...Bxd2
        • 2.Sxd2#
      • 1...Se6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::B(A)
    • R(a);N_GUARD::B(A),XR(a)
    • B(c);S_CUTR(a)::B(A)
  • Tries
    • Try
      • S(I);
      • Threat
        • R1(H)
      • Vars
        • B(c);XR(H)::S(I),XB(c)
        • S(f);N_GUARD::QAR2(L)
        • P(g);::R1(H),XP(g)
      • Refutation
        • R(a);
    • Try
      • S(I);
      • Threat
        • R1(H)
      • Vars
        • R(a);N_GUARD::B(A)
        • S(f);N_GUARD::QAR2(L)
        • P(g);::R1(H),XP(g)
      • Refutation
        • B(c);XR(H)
    • Try
      • S(I);XP(e)
      • Threat
        • R1(H)
      • Vars
        • R(a);N_GUARD::B(A)
        • S(f);N_GUARD::QAR2(L)
        • P(g);::R1(H),XP(g)
      • Refutation
        • B(c);XR(H)
    • Try
      • S(I);
      • Threat
        • R1(H)
      • Vars
        • R(a);N_GUARD::B(A)
        • S(f);N_GUARD::QAR2(L)
        • P(g);::R1(H),XP(g)
      • Refutation
        • B(c);XR(H)
    • Try
      • S(I);
      • Threat
        • R1(H)
      • Vars
        • B(c);XR(H)::S(I),XB(c)
        • P(g);::R1(H),XP(g)
        • R(a);N_GUARD::B(A)
      • Refutation
        • S(f);
  • Actual
    • S(I);XP(b)
    • Threat
      • S(I)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(I)::B(A)
      • R(a);P_PINP(D),SBLOCK,XS(I)::R1(H)
      • B(c);XR(B)::S(I),XB(c)
      • S(f);OGATE::QAB(L),XP(e)
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