MESON Chess Problem Database

Problem Display
PID: 174334 (8/2p1r1p1/8/1Q1bNpK1/p1p1kP2/r1n2p2/N1Pn1B2/3R4 w - - 0 1)

Piatesi, Antonio

2nd Prize, Boletim da UBP, 1986-1987

8/2p1r1p1/8/1Q1bNpK1/p1p1kP2/r1n2p2/N1Pn1B2/3R4

#2

8 + 12

1077 Boletim da UBP 1989

SOLUTION

  • SOUND
  • Sets
    • 1...Sdb1
      • 2.Rd4#
    • 1...Sf1
      • 2.Rd4#
    • 1...Sb3
      • 2.Sxc3#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Sxd2#
      • 1...Bxc4
        • 2.Qxf5#
      • 1...Sxc4
        • 2.Rd4#
      • 1...Sdb1
        • 2.Rd4#
      • 1...Sf1
        • 2.Rd4#
      • 1...Sb3
        • 2.Sxc3#
      • 1...Scb1!
    • 1.Sd7?
      • threat
        • 2.Sc5#
      • 1...Bc6
        • 2.Qxf5#
      • 1...Be6
        • 2.Qe5#
      • 1...Bb7
        • 2.Qxf5#
      • 1...Bf7
        • 2.Qxf5#
      • 1...Ba8
        • 2.Qxf5#
      • 1...Bg8
        • 2.Qxf5#
      • 1...Sb3
        • 2.Sxc3#
      • 1...c5
        • 2.Sxc5#
      • 1...Rxd7!
    • 1.Qxc4+?
      • 1...Sxc4
        • 2.Rd4#
      • 1...Bxc4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sc5#
      • 1...cxd3
        • 2.Qxd3#
        • 2.cxd3#
      • 1...Bc6
        • 2.Qxf5#
      • 1...Be6
        • 2.Qe5#
      • 1...Bb7
        • 2.Qxf5#
      • 1...Bf7
        • 2.Qxf5#
      • 1...Ba8
        • 2.Qxf5#
      • 1...Bg8
        • 2.Qxf5#
      • 1...Sb3
        • 2.Sxc3#
      • 1...c5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • S(a);OGATE::R1(A)
    • S(a);S_CUTR(b)::S(B),XS(c)
  • Tries
    • Try
      • S(G);XP(f)
      • Threat
        • S(G),XS(a)
      • Vars
        • B(h);OGATE,XS(G)::QAB1(F),XP(i)
        • S(a);OGATE,XS(G)::R1(A)
        • S(a);OGATE::R1(A)
        • S(a);S_CUTR(b)::S(B),XS(c)
      • Refutation
        • S(c);
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • B(h);OGATE::QAB1(F),XP(i)
        • B(h);OGATE::QAR1(F)
        • S(a);S_CUTR(b)::S(B),XS(c)
        • P(j);::S(G),XP(j)
      • Refutation
        • R(k);XS(G)
    • Try
      • Q(F);CHECK,XP(f)
      • Vars
        • S(a);OGATE,XQ(F)::R1(A)
      • Refutation
        • B(h);XQ(F)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(h);OGATE::QAB1(F),XP(i)
      • B(h);OGATE::QAR1(F)
      • S(a);S_CUTR(b)::S(B),XS(c)
      • P(j);::S(G),XP(j)
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