MESON Chess Problem Database

Problem Display
PID: 262815 (Q7/2Kp4/3Pb2R/2pNk3/5p1N/4BP2/6q1/2n5 w - - 0 1)

Havran, Jozef

Szachy, 1986

Q7/2Kp4/3Pb2R/2pNk3/5p1N/4BP2/6q1/2n5

#2

8 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qe4#
      • 1...Qxf3
        • 2.Qh8#
      • 1...Qc2
        • 2.Qh8#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qd5#
      • 1...Qg6!
    • 1.Sb4?
      • threat
        • 2.Qe4#
      • 1...Qg6
        • 2.Qa1#
      • 1...Qc2
        • 2.Qh8#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qd5#
      • 1...Qxf3!
    • 1.Sxf4?
      • threat
        • 2.Qe4#
      • 1...Qg6
        • 2.Qa1#
      • 1...Qc2
        • 2.Qh8#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qd5#
      • 1...Qxf3!
    • 1.Sb6?
      • threat
        • 2.Qe4#
      • 1...Qg6
        • 2.Qa1#
      • 1...Qc2
        • 2.Qh8#
      • 1...Bd5
        • 2.Sxd7#
        • 2.Qxd5#
      • 1...Bf5
        • 2.Sc4#
        • 2.Qd5#
      • 1...Qxf3!
    • 1.Sf6?
      • threat
        • 2.Qe4#
      • 1...Qxf3
        • 2.Qa1#
      • 1...Qg6
        • 2.Qa1#
      • 1...Bd5
        • 2.Sxd7#
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qd5#
      • 1...Qc2!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qe4#
      • 1...Qxf3
        • 2.Sxf3#
      • 1...Qg6
        • 2.Qa1#
      • 1...Qc2
        • 2.Qh8#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(H)
      • Vars
        • Q(b);N_GUARD,XP(B)::QAB(H)
        • Q(b);N_GUARD::QAB(H)
        • B(f);N_GUARD::QAR1(H),XB(f)
        • B(f);N_GUARD::QAR1(H)
      • Refutation
        • Q(b);
    • Try
      • S(D);
      • Threat
        • QAR1(H)
      • Vars
        • Q(b);N_GUARD::QAB(H)
        • B(f);N_GUARD::QAR1(H),XB(f)
        • B(f);N_GUARD::QAR1(H)
      • Refutation
        • Q(b);XP(B)
    • Try
      • S(D);XP(c)
      • Threat
        • QAR1(H)
      • Vars
        • Q(b);N_GUARD::QAB(H)
        • B(f);N_GUARD::QAR1(H),XB(f)
        • B(f);N_GUARD::QAR1(H)
      • Refutation
        • Q(b);XP(B)
    • Try
      • S(D);
      • Threat
        • QAR1(H)
      • Vars
        • Q(b);N_GUARD::QAB(H)
      • Refutation
        • Q(b);XP(B)
    • Try
      • S(D);
      • Threat
        • QAR1(H)
      • Vars
        • Q(b);N_GUARD,XP(B)::QAB(H)
        • Q(b);N_GUARD::QAB(H)
        • B(f);N_GUARD::QAR1(H)
      • Refutation
        • Q(b);
  • Actual
    • S(D);
    • Threat
      • QAR1(H)
    • Vars
      • Q(b);XP(B)::S(C),XQ(b)
      • Q(b);N_GUARD::QAB(H)
      • B(f);N_GUARD::QAR1(H),XB(f)
      • B(f);N_GUARD::QAR1(H)
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