MESON Chess Problem Database

Problem Display
PID: 214446 (3Q4/p3r3/3N1p2/1B3P2/1P1kN1bR/6K1/1P1p4/3R4 w - - 0 1)

Finlinson, Joseph Henry Scott

Philadelphia Times, 1880

3Q4/p3r3/3N1p2/1B3P2/1P1kN1bR/6K1/1P1p4/3R4

#2

10 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Sc4#
  • Tries
    • 1.Sf7+?
      • 1...Ke3
        • 2.Qd3#
      • 1...Kxe4
        • 2.Qd3#
      • 1...Rd7!
    • 1.Rxd2+?
      • 1...Ke5
        • 2.Qxe7#
      • 1...Ke3!
    • 1.Qb6+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Ke5
        • 2.Qc5#
      • 1...axb6!
  • Keys
    • 1.Sxd2!
      • threat
        • 2.S2c4#
      • 1...Re3+
        • 2.Sf3#
      • 1...Ke3
        • 2.Sf1#
      • 1...Kd5
        • 2.Sf3#
      • 1...Ke5
        • 2.S2c4#
      • 1...Re1
        • 2.S6c4#
      • 1...Re2
        • 2.S6c4#
      • 1...Re4
        • 2.S6c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD,SBLOCK,XS(E)::QAR(J)+S(I)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(b);N_SPINP(a),OGATE,S_FLIGHT::QAR1(J)
        • K(b);N_SPINP(a),OGATE,P-FLIGHT,P_SPINB(c),XS(E)::QAB1(J)
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • R(A);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR2(J),XR(f)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(J)
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(J)
      • Refutation
        • P(e);XQ(J)
  • Actual
    • S(E);P_PINB(c),XP(a)
    • Threat
      • R(A)+S(E)
    • Vars
      • R(f);CHECK,SBLOCK::R(A)+S(E),DCHECK
      • K(b);N_SPINB(c),S_FLIGHT::S(E)
      • K(b);N_SPINB(c),P-FLIGHT::R(A)+S(E)
      • R(f);N_GUARD::QAR(J)+S(I)
      • R(f);N_GUARD,N_SPINB(c)::QAR(J)+S(I)
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