MESON Chess Problem Database

Problem Display
PID: 200380 (2K5/p1P1B3/r3B1P1/4k3/p3r3/Q3P3/8/8 w - - 0 1)

Cauveren, Jonas Ephraim

Op de Hoogte, 1908

2K5/p1P1B3/r3B1P1/4k3/p3r3/Q3P3/8/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Qxe3#
    • 1...Ra5
      • 2.Qd6#
    • 1...Rd6
      • 2.Qxd6#
    • 1...Rxe6
      • 2.Qc5#
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qd5#
      • 1...Kxe6
        • 2.Qxe4#
      • 1...Rxe3
        • 2.Qxe3#
      • 1...Rxe6
        • 2.Qb5#
      • 1...Rd4
        • 2.Qf5#
      • 1...Ra5
        • 2.Qd6#
      • 1...Rd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,XP(B)::QAR2(A),XR(b)
    • R(d);N_GUARD::QAB1(A)
    • R(d);N_GUARD::QAB1(A),XR(d)
    • R(d);SBLOCK,XB(C)::QAR2(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT,XB(C)::QAR2(A),XR(b)
      • R(b);OGATE,XP(B)::QAR2(A),XR(b)
      • R(d);SBLOCK,XB(C)::QAR(A)
      • R(b);OGATE::QAR1(A)
      • R(d);N_GUARD::QAB1(A)
      • R(d);N_GUARD::QAB1(A),XR(d)
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