MESON Chess Problem Database

Problem Display
PID: 259656 (2b4r/3PR3/n1B5/4BP2/4Np2/1P1kP1q1/1KN1p3/8 w - - 0 1)

Brogi, Giuseppe

Problemas, 1961

2b4r/3PR3/n1B5/4BP2/4Np2/1P1kP1q1/1KN1p3/8

#2

10 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe3
      • 2.Se1#
    • 1...Bxd7
      • 2.Rxd7#
  • Tries
    • 1.Sf2+?
      • 1...Kd2
        • 2.Bc3#
      • 1...Qxf2!
    • 1.Bd4?
      • threat
        • 2.Bb5#
      • 1...Qg8
        • 2.Se1#
      • 1...Sc7
        • 2.Sb4#
      • 1...Bxd7!
    • 1.Bxf4?
      • threat
        • 2.Bb5#
      • 1...Bxd7
        • 2.Rxd7#
      • 1...Qg8
        • 2.Se1#
      • 1...Sc7
        • 2.Sb4#
      • 1...Qg7+!
    • 1.d8Q+?
      • 1...Bd7
        • 2.Rxd7#
        • 2.Qxd7#
      • 1...Rxd8!
    • 1.d8R+?
      • 1...Bd7
        • 2.Rexd7#
        • 2.Rdxd7#
      • 1...Rxd8!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Bb5#
      • 1...Bxd7
        • 2.Rxd7#
      • 1...Qg8
        • 2.Sf2#
      • 1...Sc7
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD,SBLOCK,XP(D)::S(B)
    • B(f);OGATE,XP(I)::R(J),XB(f)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT,S_CUTQ(c)::B(F)
      • Refutation
        • Q(c);XS(E)
    • Try
      • B(F);
      • Threat
        • B(H)
      • Vars
        • Q(c);N_GUARD::S(B)
        • S(e);N_GUARD::S(B)
      • Refutation
        • B(f);XP(I)
    • Try
      • B(F);XP(d)
      • Threat
        • B(H)
      • Vars
        • B(f);OGATE,XP(I)::R(J),XB(f)
        • Q(c);N_GUARD::S(B)
        • S(e);N_GUARD::S(B)
      • Refutation
        • Q(c);CHECK
    • Try
      • P(I);CHECK
      • Refutation
        • R(g);XQ(I)
    • Try
      • P(I);CHECK
      • Refutation
        • R(g);XR(I)
  • Actual
    • B(F);
    • Threat
      • B(H)
    • Vars
      • B(f);OGATE,XP(I)::R(J),XB(f)
      • Q(c);N_GUARD::S(E)
      • S(e);N_GUARD::S(E)
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