MESON Chess Problem Database

Problem Display
PID: 120150 (8/1N2p3/2P3B1/KP1k4/8/6N1/8/Q7 w - - 0 1)

Feigl, Maximilian

Oesterreichische Lesehalle, 1888

8/1N2p3/2P3B1/KP1k4/8/6N1/8/Q7

#2

7 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Bf7#
  • Tries
    • 1.Kb4?
      • 1...e5
        • 2.Bf7#
      • 1...e6
        • 2.Be4#
      • 1...Ke6!
    • 1.Bb1?
      • threat
        • 2.Ba2#
      • 1...Ke6
        • 2.Ba2#
      • 1...Kc4!
    • 1.Bc2?
      • threat
        • 2.Bb3#
      • 1...Ke6
        • 2.Bb3#
      • 1...Kc4!
    • 1.Qc3?
      • 1...e5
        • 2.Bf7#
      • 1...e6
        • 2.Be4#
        • 2.Qc5#
      • 1...Ke6!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Sc5#
        • 2.Sd8#
      • 1...Kxd4!
  • Keys
    • 1.Se2!
      • 1...Kc4
        • 2.Qa2#
      • 1...Ke6
        • 2.Sf4#
      • 1...e5
        • 2.Qa2#
      • 1...e6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::B(F)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(b);N_GUARD::B(F)
        • P(b);SBLOCK::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Threat
        • B(F)
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Threat
        • B(F)
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);N_GUARD::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT::S(B)
      • P(b);SBLOCK::QAB(A)
      • P(b);SBLOCK::QAR1(A)
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