MESON Chess Problem Database

Problem Display
PID: 120836 (7b/8/1K5Q/1n2kp2/2p2R2/2Np4/5P2/8 w - - 0 1)

Loepert, Fritz

Mate, 1982

7b/8/1K5Q/1n2kp2/2p2R2/2Np4/5P2/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sxb5?
      • threat
        • 2.Qd6#
      • 1...Kd5
        • 2.Qd6#
      • 1...Bf6!
    • 1.Rxf5+?
      • 1...Kd4
        • 2.Qxh8#
      • 1...Kxf5!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Rd5#
      • 1...Kxd4
        • 2.Qxh8#
      • 1...Sxc3
        • 2.Qd6#
      • 1...Sxd4
        • 2.f4#
      • 1...Bf6
        • 2.Qe3#
      • 1...Sc7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);XS(c)
      • Threat
        • QAB1(E)
      • Vars
        • K(d);P-FLIGHT::QAR1(E)
      • Refutation
        • B(f);
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • K(d);S_FLIGHT::QAB(E),XB(f)
      • Refutation
        • K(d);P-FLIGHT,XR(C)
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • K(d);S_FLIGHT,XR(C)::QAB(E),XB(f)
      • S(c);N_GUARD,XS(B)::QAB1(E)
      • S(c);SBLOCK,XR(C)::P(A)
      • B(f);SBLOCK::QAR2(E)
      • S(c);N_GUARD::QAB1(E)
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