MESON Chess Problem Database

Problem Display
PID: 157289 (1b3R2/1p3rrn/4p1P1/5bP1/Q1N1Bk1B/p2p3P/3P4/2K1R3 w - - 0 1)

Ellerman, Arnoldo

Brisbane Courier, 1918

1b3R2/1p3rrn/4p1P1/5bP1/Q1N1Bk1B/p2p3P/3P4/2K1R3

#2

11 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qf3#
      • 1...Bxe4
        • 2.Qg4#
      • 1...Bg4
        • 2.Qxg4#
      • 1...Sxg5!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sxd3#
      • 1...Rc7+
        • 2.Bc6#
      • 1...Kxe5
        • 2.Bg3#
      • 1...Bxh3
        • 2.Bxd3#
      • 1...Bxe4
        • 2.Qxe4#
      • 1...Bxe5
        • 2.Rf1#
      • 1...Rd7
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • B(d);N_GUARD,P_SPINR(g),XB(G)::QAR1(E)
        • B(d);N_GUARD,P_SPINR(g)::QAR1(E),XB(d)
      • Refutation
        • S(i);XP(I)
  • Actual
    • S(F);
    • Threat
      • S(F),XP(b)
    • Vars
      • R(g);CHECK,P_SPINB(d)::QAR(E)+B(G)
      • K(c);S_FLIGHT,XS(F)::B(H)
      • B(d);N_GUARD,P_SPINR(g),XP(D)::QAR(E)+B(G),XP(b)
      • B(d);OGATE,P_SPINB(d),P_SPINR(g),XB(G)::QAR1(E),XB(d)
      • B(j);SBLOCK,XS(F)::R(B)
      • R(g);P_SPINB(d)::QAR(E)+B(G)
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