MESON Chess Problem Database

Problem Display
PID: 267171 (4QB2/5p2/bn6/bp1k4/1n2R2r/N7/3NK2p/8 w - - 0 1)

Bottacchi, Antonio

Realismo e romanticismo nell'arte problemistica di Antonio B, 2005

4QB2/5p2/bn6/bp1k4/1n2R2r/N7/3NK2p/8

#2

6 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4+
      • 2.Qxe4#
    • 1...Bb7
      • 2.Qxb5#
    • 1...Bc8
      • 2.Qxb5#
    • 1...Sc6
      • 2.Qxf7#
    • 1...Sa4
      • 2.Qd7#
    • 1...Sd7
      • 2.Qxd7#
    • 1...Sa8
      • 2.Qd7#
    • 1...f5
      • 2.Qe6#
    • 1...f6
      • 2.Qe6#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Qc5#
        • 2.Qd6#
      • 1...Rxe4+
        • 2.Qxe4#
      • 1...Rh6
        • 2.Qc5#
      • 1...Sd3
        • 2.Qd6#
      • 1...Sa4
        • 2.Qd6#
        • 2.Qd7#
      • 1...Sc4
        • 2.Qc5#
      • 1...Sd7
        • 2.Qd6#
        • 2.Qxd7#
      • 1...Sc8
        • 2.Qc5#
      • 1...Kc6!
    • 1.Qd8+?
      • 1...Sd7
        • 2.Qxd7#
      • 1...Kc6!
  • Keys
    • 1.Sxb5!
      • threat
        • 2.Re5#
      • 1...Rxe4+
        • 2.Qxe4#
      • 1...Bxb5+
        • 2.Qxb5#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Rh5
        • 2.Rd4#
      • 1...Sd3
        • 2.Sc7#
      • 1...Sc6
        • 2.Qxf7#
      • 1...Sc4
        • 2.Sc3#
      • 1...f6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(c);CHECK,OGATE,XR(D)::QAB1(E),XR(c)
    • B(g);N_GUARD::QAR2(E),XP(e)
    • S(b);SBLOCK::QAB(E),XP(i)
    • S(h);N_GUARD::QAR2(E)
    • S(h);N_GUARD::QAR2(E),XS(h)
    • P(i);N_GUARD::QAB1(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);CHECK,OGATE,XR(D)::QAB1(E),XR(c)
        • R(c);::QAR1(E)
        • S(b);::QAR1(E)
        • S(h);::QAR1(E)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR2(E),XS(h)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • S(C);P_SPINS(C),XP(e)
    • Threat
      • R1(D)
    • Vars
      • R(c);CHECK,OGATE,XR(D)::QAB1(E),XR(c)
      • B(g);CHECK,OGATE,XS(C)::QAR2(E),XB(g)
      • S(h);N_GUARD::QAR2(E),XS(h)
      • R(c);N_GUARD::R1(D)
      • S(b);N_PINS(C)::S(C)
      • S(b);SBLOCK::QAB(E),XP(i)
      • S(h);N_PINS(C)::S(C)
      • P(i);N_GUARD::QAB1(E)
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