MESON Chess Problem Database

Problem Display
PID: 160738 (8/8/5K2/1N4p1/6p1/5kPN/PR2bPp1/Q7 w - - 0 1)

Bartel, Erich

The Problemist, 1963

8/8/5K2/1N4p1/6p1/5kPN/PR2bPp1/Q7

#2

8 + 5

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Sxg5#
    • 1...Bf1
      • 2.Sxg5#
    • 1...Bd3
      • 2.Sxg5#
    • 1...Bc4
      • 2.Sxg5#
    • 1...Bxb5
      • 2.Sxg5#
  • Tries
    • 1.Rb3+?
      • 1...Ke4
        • 2.Qd4#
        • 2.Qe5#
      • 1...Bd3!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qxe2#
        • 2.Qd5#
      • 1...Ke4
        • 2.Sxg5#
      • 1...Bxd1
        • 2.Sxg5#
      • 1...gxh3
        • 2.Qxe2#
      • 1...g1Q
        • 2.Qd5#
      • 1...g1S
        • 2.Qd5#
      • 1...g1B
        • 2.Qd5#
      • 1...g1R
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • B(a);::S(F),XP(e)
    • B(a);XS(G)::S(F),XP(e)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • Q(A);P_PINB(a)
    • Threat
      • DUALS(2)
    • Vars
      • K(c);N_SPINB(a),S_FLIGHT::S(F),XP(e)
      • B(a);N_SPINB(a),XQ(A)::S(F),XP(e)
      • P(d);XS(F)::QAB1(A),XB(a)
      • P(b);::QAB(A)
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