MESON Chess Problem Database

Problem Display
PID: 110022 (b4r2/pk1B4/pb2p3/p3Bp2/3N4/8/5K2/1Q4R1 w - - 0 1)

Pasqualini, Giuseppe

Il Littorale, 1929-1931

b4r2/pk1B4/pb2p3/p3Bp2/3N4/8/5K2/1Q4R1

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qe4#
  • Tries
    • 1.Rg8?
      • threat
        • 2.Qh1#
      • 1...Rc8
        • 2.Bxc8#
      • 1...f4
        • 2.Qe4#
      • 1...Rxg8!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Qh1#
      • 1...Rc8
        • 2.Bc6#
      • 1...Rh8
        • 2.Bxe6#
      • 1...f4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::QAB(A)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAB(A)
      • Vars
        • R(i);N_GUARD::B(F),XR(i)
        • P(b);N_GUARD::QAB(A)
      • Refutation
        • R(i);XR(B)
  • Actual
    • R(B);
    • Threat
      • QAB(A)
    • Vars
      • R(i);SBLOCK::R(B)+B(F),DCHECK
      • R(i);N_GUARD::R(B)+B(F),XP(e)
      • P(b);N_GUARD::QAB(A)
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