MESON Chess Problem Database

Problem Display
PID: 1122 (8/8/1B2b1B1/RnR5/3b1k1P/5p2/5Q1K/8 w - - 0 1)

Schmitt, Adalbert

The Westminster Papers, 1873

8/8/1B2b1B1/RnR5/3b1k1P/5p2/5Q1K/8

#2

7 + 5

501 Maryland Chess Review 1874

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qg3#
    • 1...Be3
      • 2.Qg3#
    • 1...Sa3
      • 2.Qxd4#
    • 1...Sa7
      • 2.Qxd4#
    • 1...Sc7
      • 2.Qxd4#
  • Tries
    • 1.Bc7+?
      • 1...Kg4
        • 2.Bh5#
        • 2.Rg5#
        • 2.Qg3#
      • 1...Sd6
        • 2.Qxd4#
      • 1...Sxc7
        • 2.Qxd4#
      • 1...Be5!
    • 1.Rf5+?
      • 1...Ke4
        • 2.Qxf3#
      • 1...Kg4
        • 2.Qg3#
      • 1...Bxf5!
    • 1.Qd2+?
      • 1...Kg4
        • 2.Qg5#
      • 1...Be3!
  • Keys
    • 1.Re5!
      • threat
        • 2.Re4#
        • 2.Qg3#
      • 1...Kg4
        • 2.Re4#
        • 2.Qg3#
      • 1...Kxe5
        • 2.Qxd4#
      • 1...Bxf2
        • 2.Re4#
      • 1...Bxe5
        • 2.Qg3#
      • 1...Bd5
        • 2.Qg3#
      • 1...Bf5
        • 2.Qg3#
      • 1...Sc3
        • 2.Qg3#
      • 1...Sd6
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • K(c);N_SPINP(a),P-FLIGHT::QAR1(A)
    • B(b);SBLOCK::QAB1(A)
    • S(d);N_GUARD::QAR2(A),XB(b)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • S(d);P_SPINS(d)::QAR2(A),XB(b)
        • S(d);XB(F)::QAR2(A),XB(b)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • R(E);CHECK
      • Vars
        • K(c);N_SPINP(a),P-FLIGHT::QAB1(A),XP(a)
        • K(c);N_SPINP(a),P-FLIGHT::QAR1(A)
      • Refutation
        • B(e);XR(E)
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);N_SPINP(a),P_SPINS(d),S_FLIGHT,XR(E)::QAB1(A),XB(b)
      • B(b);N_SPINP(a),XQ(A)::R1(E)
      • B(b);SBLOCK,XR(E)::QAB1(A)
      • B(e);::QAB1(A)
      • S(d);::QAB1(A)
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