MESON Chess Problem Database

Problem Display
PID: 145132 (Q7/B1K5/3p4/7p/2k1P1p1/PN5q/BPpr4/7r w - - 0 1)

Feigl, Maximilian

Tidskrift for Schack, 1909

Q7/B1K5/3p4/7p/2k1P1p1/PN5q/BPpr4/7r

#2

8 + 8

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Qc6#
    • 1...Qd3
      • 2.Qc6#
    • 1...Re2
      • 2.Qd5#
    • 1...Rf2
      • 2.Qd5#
    • 1...Rg2
      • 2.Qd5#
    • 1...Rh2
      • 2.Qd5#
    • 1...Rd3
      • 2.Qc6#
    • 1...Rd5
      • 2.Qxd5#
  • Tries
    • 1.Sc1+?
      • 1...Qb3
        • 2.Qc6#
      • 1...Kb5!
    • 1.Sa5+?
      • 1...Kd3
        • 2.Bc4#
      • 1...Kb5!
    • 1.Bf2?
      • threat
        • 2.Qa6#
      • 1...Kb5
        • 2.Qc6#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Kd3!
    • 1.Be3?
      • threat
        • 2.Qa6#
      • 1...Kb5
        • 2.Qc6#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Kd3!
    • 1.Qb7?
      • threat
        • 2.Qa6#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Kd3!
  • Keys
    • 1.Bg1!
      • threat
        • 2.Qa6#
      • 1...Kd3
        • 2.Sc1#
      • 1...Kb5
        • 2.Qc6#
      • 1...Rd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • K(e);S_FLIGHT::QAB1(H)
    • Q(d);SBLOCK::QAR2(H)
    • R(c);N_GUARD::QAB1(H)
    • R(c);SBLOCK::QAR2(H)
    • R(c);N_GUARD::QAB1(H),XR(c)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • Q(d);P_SPINQ(d)::QAR2(H)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(e);S_FLIGHT::B(A)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • B(F);
      • Threat
        • QAB(H)
      • Vars
        • K(e);S_FLIGHT::QAB1(H)
        • R(c);N_GUARD::QAB1(H),XR(c)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • B(F);
      • Threat
        • QAB(H)
      • Vars
        • K(e);S_FLIGHT::QAB1(H)
        • R(c);N_GUARD::QAB1(H),XR(c)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(H);
      • Threat
        • QAB(H)
      • Vars
        • R(c);N_GUARD::QAB1(H),XR(c)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • B(F);
    • Threat
      • QAB(H)
    • Vars
      • K(e);S_FLIGHT::S(D)
      • K(e);S_FLIGHT::QAB1(H)
      • R(c);N_GUARD::QAB1(H),XR(c)
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