MESON Chess Problem Database

Problem Display
PID: 11421 (1r3B2/8/1R2p3/3pkb2/5Rr1/6p1/3K4/5Q2 w - - 0 1)

de Barbieri, Vittorio

Revista Romana de Sah, 1938

1r3B2/8/1R2p3/3pkb2/5Rr1/6p1/3K4/5Q2

#2

5 + 7

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Bg7#
    • 1...Rg7
      • 2.Bxg7#
    • 1...Bb1
      • 2.Bd6#
    • 1...Bc2
      • 2.Bd6#
    • 1...Bd3
      • 2.Bd6#
    • 1...Bg6
      • 2.Bd6#
      • 2.Bg7#
    • 1...Bh7
      • 2.Bd6#
  • Tries
    • 1.Rxf5+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qd3#
      • 1...exf5!
    • 1.Qa1+?
      • 1...d4
        • 2.Qxd4#
      • 1...Kxf4!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qd4#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Kf6
        • 2.Qxf5#
      • 1...Rxf4
        • 2.Bg7#
      • 1...Bxd3
        • 2.Bd6#
      • 1...d4
        • 2.Qxd4#
      • 1...Be4
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(b);N_GUARD::B(E)
    • R(b);N_GUARD::B(E),XR(b)
    • B(e);::B(E)
  • Tries
    • Try
      • R(C);CHECK,XB(e)
      • Vars
        • K(d);S_FLIGHT::QAR1(A)
        • K(d);P-FLIGHT::QAB1(A)
      • Refutation
        • P(f);XR(C)
    • Try
      • Q(A);CHECK
      • Vars
        • P(c);P_SPINP(c)::QAB1(A),XP(c)
      • Refutation
        • K(d);S_FLIGHT,XR(C)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(d);S_FLIGHT,XR(C)::QAB1(A)
      • K(d);P_SPINB(e),P_SPINP(f),S_FLIGHT::QAR1(A),XB(e)
      • R(b);N_GUARD,SBLOCK,XR(C)::B(E)
      • B(e);XQ(A)::B(E)
      • P(c);::QAB1(A),XP(c)
      • B(e);::B(E)
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