MESON Chess Problem Database

Problem Display
PID: 97299 (8/B1N5/1p1p2K1/N7/1p1k4/4n2Q/2R5/8 w - - 0 1)

Stocchi, Ottavio

Problemi di Ottavio Stocchi, 1995

8/B1N5/1p1p2K1/N7/1p1k4/4n2Q/2R5/8

#2

6 + 5

14475 Mat Plus Review 2007
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qxe3#
  • Tries
    • 1.Bxb6+?
      • 1...Ke4
        • 2.Qxe3#
      • 1...Ke5
        • 2.Qxe3#
      • 1...Kd3!
    • 1.Rd2+?
      • 1...Kc3
        • 2.Qxe3#
      • 1...Kc5
        • 2.Qxe3#
      • 1...Ke5
        • 2.Qxe3#
      • 1...Ke4!
  • Keys
    • 1.Re2!
      • threat
        • 2.Qxe3#
      • 1...Kc3
        • 2.Qxe3#
      • 1...Kd3
        • 2.Qxe3#
      • 1...Ke4
        • 2.Qxe3#
      • 1...Kc5
        • 2.Qxe3#
      • 1...Ke5
        • 2.Qxe3#
      • 1...Sd1
        • 2.Bxb6#
      • 1...Sf1
        • 2.Bxb6#
      • 1...Sc2
        • 2.Bxb6#
      • 1...Sg2
        • 2.Bxb6#
      • 1...Sc4
        • 2.Sb3#
      • 1...Sg4
        • 2.Bxb6#
      • 1...Sd5
        • 2.Se6#
      • 1...Sf5
        • 2.Bxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(d),S_FLIGHT::QAR2(B),XS(a)
  • Tries
    • Try
      • B(E);CHECK,XP(d)
      • Vars
        • K(c);P-FLIGHT::QAR1(B),XS(a)
        • K(c);S_FLIGHT::QAR2(B),XS(a)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(a)
    • Try
      • R(A);CHECK
      • Vars
        • K(c);N_SPINP(d),P_SPINS(a),S_FLIGHT::QAR2(B),XS(a)
        • K(c);S_FLIGHT::QAB(B),XS(a)
        • K(c);N_SPINP(d),S_FLIGHT::QAR2(B),XS(a)
      • Refutation
        • K(c);N_SPINP(d),P-FLIGHT
  • Actual
    • R(A);
    • Threat
      • QAB1(B),XS(a)
    • Vars
      • K(c);N_SPINP(d),P_SPINS(a),S_FLIGHT::QAR2(B),XS(a)
      • K(c);N_SPINP(d),P-FLIGHT,P_SPINS(a)::QAR1(B),XS(a)
      • K(c);S_FLIGHT::QAB(B),XS(a)
      • S(a);::B(E),XP(d)
      • S(a);SBLOCK::S(C)
      • S(a);SBLOCK::S(F)
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