MESON Chess Problem Database

Problem Display
PID: 124428 (b7/3Rb1B1/1N2k1K1/3r2p1/B3N3/8/1Q3r2/8 w - - 0 1)

Vogel, Peter

Source?, 0000

b7/3Rb1B1/1N2k1K1/3r2p1/B3N3/8/1Q3r2/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qe5#
    • 1...Rd2
      • 2.Qe5#
    • 1...Rd3
      • 2.Qe5#
    • 1...Re5
      • 2.Qxe5#
    • 1...Rd6
      • 2.Sc5#
      • 2.Qe5#
    • 1...Rxd7
      • 2.Bxd7#
      • 2.Qe5#
  • Tries
    • 1.Rd6+?
      • 1...Rxd6
        • 2.Sc5#
        • 2.Qe5#
      • 1...Bxd6!
  • Keys
    • 1.Qxf2!
      • threat
        • 2.Qf7#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Rf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAR1(A)
    • R(b);N_GUARD::QAR1(A),XR(b)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • B(e);XR(F)
  • Actual
    • Q(A);XR(a)
    • Threat
      • QAB1(A)
    • Vars
      • B(e);N_GUARD::QAR1(A),XB(e)
      • R(b);N_GUARD::QAB1(A),XR(b)
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