MESON Chess Problem Database

Problem Display
PID: 45352 (8/8/K2Bp3/1P1Nb1RQ/2kpr3/4P3/8/2N4B w - - 0 1)

Stevenson, Edward

Double Pin-Mate after a Black King Move, 1980

8/8/K2Bp3/1P1Nb1RQ/2kpr3/4P3/8/2N4B

#2

9 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2+?
      • 1...d3
        • 2.Qxd3#
        • 2.Qa2#
      • 1...Kxd5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qb3#
      • 1...Kxd5
        • 2.Qxd4#
      • 1...Rxe3
        • 2.Qa4#
      • 1...Bxd6
        • 2.Qc2#
      • 1...dxe3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(a);P_SPINB(d),P_SPINR(c),S_FLIGHT,XS(E)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • K(a);P_SPINB(d),P_SPINP(b),P_SPINR(c),S_FLIGHT,XS(E)::QAR1(G),XP(b)
      • R(c);XP(C)::QAR2(G)
      • B(d);XB(I)::QAR2(G)
      • P(b);XP(C)::QAB1(G)
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