MESON Chess Problem Database

Problem Display
PID: 109078 (8/7b/8/8/2p4K/1pN2Q2/1qk1B1NR/7R w - - 0 1)

Notaro, Rosario

Thema Danicum, 1986

8/7b/8/8/2p4K/1pN2Q2/1qk1B1NR/7R

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4?
      • threat
        • 2.Bxc4#
      • 1...Kd2
        • 2.Bxc4#
      • 1...Qxc3
        • 2.Bd3#
      • 1...Qc1
        • 2.Bd1#
      • 1...Bd3!
    • 1.Bd1+?
      • 1...Kd2
        • 2.Qe3#
      • 1...Kc1!
  • Keys
    • 1.Bxc4!
      • threat
        • 2.Sf4#
      • 1...Kd2
        • 2.Sf4#
      • 1...Qxc3
        • 2.Se3#
      • 1...Qc1
        • 2.Se1#
      • 1...Bd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • R(D)+B(B),XP(d)
      • Vars
        • K(b);P-FLIGHT::R(D)+B(B),XP(d)
        • Q(a);SBLOCK,XS(E)::R(D)+B(B),DCHECK
        • Q(a);SBLOCK::R(D)+B(B),DCHECK
      • Refutation
        • B(e);
    • Try
      • B(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(F)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(B);XP(d)
    • Threat
      • R(D)+S(C)
    • Vars
      • K(b);P-FLIGHT::R(D)+S(C)
      • Q(a);SBLOCK,XS(E)::R(D)+S(C),DCHECK
      • Q(a);SBLOCK::R(D)+S(C),DCHECK
      • B(e);N_GUARD::QAB1(F),XB(e)
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