MESON Chess Problem Database

Problem Display
PID: 150550 (8/8/4K3/3p4/1N2k1Bp/8/1BPrNP2/Q2rn3 w - - 0 1)

La Rosa, Massimo

Scacco!, 1978

8/8/4K3/3p4/1N2k1Bp/8/1BPrNP2/Q2rn3

#2

8 + 6

6490 yacpdb 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Bf5#
    • 1...d4
      • 2.Qa8#
  • Tries
    • 1.Qa7?
      • threat
        • 2.Qe3#
        • 2.Qh7#
      • 1...Sxc2
        • 2.Qh7#
        • 2.f3#
      • 1...Rd4
        • 2.Qh7#
      • 1...Rd3
        • 2.Qh7#
      • 1...Sg2
        • 2.Qh7#
        • 2.f3#
      • 1...d4
        • 2.Qb7#
        • 2.Qh7#
        • 2.Qa8#
      • 1...Rxe2!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Qe5#
      • 1...Rd4
        • 2.Sc3#
      • 1...Sd3
        • 2.Qd4#
      • 1...Sf3
        • 2.Bf5#
      • 1...d4
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::B(G)
    • P(f);OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAB(A)
      • Refutation
        • R(c);XS(D)
  • Actual
    • B(B);
    • Threat
      • QAR1(A)
    • Vars
      • R(c);SBLOCK::S(D)
      • S(b);S_CUTR(c)::QAR1(A)
      • S(b);SBLOCK::B(G)
      • P(f);OGATEB::QAB(A)
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