MESON Chess Problem Database

Problem Display
PID: 230226 (Q2R4/8/4p1p1/3N2r1/K2Nk1r1/1P2P2B/1B3p2/4R3 w - - 0 1)

Daniel, Arthur William

Tidskrift for Schack, 1913

Q2R4/8/4p1p1/3N2r1/K2Nk1r1/1P2P2B/1B3p2/4R3

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Sb4#
      • 2.Sf4#
  • Tries
    • 1.Bg2+?
      • 1...Kd3
        • 2.Rd1#
      • 1...Ke5
        • 2.Qb8#
      • 1...Rxg2!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sde7#
      • 1...Kd3+
        • 2.Sb4#
      • 1...Kf3+
        • 2.Sf4#
      • 1...Kxf5+
        • 2.e4#
      • 1...Rxf5
        • 2.Sf6#
      • 1...exd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(b);P_PINS(G),S_FLIGHT::R(A)
        • K(b);P-FLIGHT,P_PINS(G)::QAB(I)
      • Refutation
        • R(c);XB(E)
  • Actual
    • S(G);
    • Threat
      • QAB(I)+S(H)
    • Vars
      • K(b);CHECK,S_FLIGHT::R(J)+S(H),DCHECK
      • K(b);CHECK,S_FLIGHT::QAB(I)+S(H)
      • K(b);CHECK,OGATE,P_SPINR(c),S_FLIGHT,XS(G)::P(D)
      • R(d);SBLOCK,XS(G)::QAB(I)+S(H),DCHECK
      • P(e);OGATE,P_SPINP(e),XS(H)::QAB1(I),XP(e)
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