MESON Chess Problem Database

Problem Display
PID: 73010 (4B3/5rpb/7p/R3Np1k/5Q1B/5P2/7K/8 w - - 0 1)

Buts, M

Tijdschrift vd KNSB, 1936

4B3/5rpb/7p/R3Np1k/5Q1B/5P2/7K/8

#2

7 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qg4#
      • 1...Kg6
        • 2.Qxf5#
      • 1...g5!
    • 1.Sc4?
      • threat
        • 2.Qg4#
      • 1...Kg6
        • 2.Qxf5#
      • 1...g5!
    • 1.Sc6?
      • threat
        • 2.Qg4#
      • 1...Kg6
        • 2.Qxf5#
      • 1...g5!
    • 1.Sd7?
      • threat
        • 2.Qg4#
      • 1...Kg6
        • 2.Qxf5#
      • 1...g5!
    • 1.Sxf7?
      • threat
        • 2.Qg4#
      • 1...Kg6
        • 2.Se5#
        • 2.Sd6#
        • 2.Sxh6#
        • 2.Sd8#
        • 2.Sh8#
        • 2.Qxf5#
      • 1...g5!
    • 1.Bxf7+?
      • 1...Bg6
        • 2.Bxg6#
      • 1...g6!
    • 1.Qxf5+?
      • 1...Kxh4
        • 2.Ra4#
        • 2.Qg4#
      • 1...g5
        • 2.Qg4#
      • 1...Bxf5!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Qg4#
      • 1...Kxg6
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);P_PINP(a)
      • Threat
        • QAB1(C)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(C),XP(a)
      • Refutation
        • P(e);N_SPINP(a)
    • Try
      • S(F);P_PINP(a)
      • Threat
        • QAB1(C)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(C),XP(a)
      • Refutation
        • P(e);N_SPINP(a)
    • Try
      • S(F);P_PINP(a)
      • Threat
        • QAB1(C)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(C),XP(a)
      • Refutation
        • P(e);N_SPINP(a)
    • Try
      • S(F);P_PINP(a)
      • Threat
        • QAB1(C)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(C),XP(a)
      • Refutation
        • P(e);N_SPINP(a)
    • Try
      • S(F);P_PINP(a),XR(d)
      • Threat
        • QAB1(C)
      • Refutation
        • P(e);N_SPINP(a)
    • Try
      • B(G);CHECK,XR(d)
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::B(G),XB(f)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(C);CHECK,XP(a)
      • Vars
        • P(e);P_SPINP(e)::QAB1(C)
      • Refutation
        • B(f);XQ(C)
  • Actual
    • S(F);N_PINR(d),P_PINP(a)
    • Threat
      • QAB1(C)
    • Vars
      • K(b);N_SPINP(a),P_SPINR(d),S_FLIGHT,XS(F)::QAB1(C),XP(a)
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