MESON Chess Problem Database

Problem Display
PID: 203625 (8/4N1p1/2p3B1/2PP4/3k4/7N/1pQ2P2/bK6 w - - 0 1)

Kovacs, Florian Janos

Nepszava, 1924

8/4N1p1/2p3B1/2PP4/3k4/7N/1pQ2P2/bK6

#2

8 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qc3#
    • 1...cxd5
      • 2.Sc6#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Sxc6#
      • 1...cxd5
        • 2.Sc6#
      • 1...Ke5!
    • 1.Be4?
      • threat
        • 2.Sxc6#
      • 1...cxd5
        • 2.Sc6#
      • 1...Ke5!
    • 1.Bf7?
      • threat
        • 2.Sxc6#
      • 1...cxd5
        • 2.Sc6#
      • 1...Ke5!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qc3#
      • 1...Kxc5!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qc3#
        • 2.Qf4#
      • 1...Kxc4!
    • 1.f3?
      • 1...Ke3
        • 2.Qd3#
        • 2.Qf2#
      • 1...Ke5
        • 2.Qc3#
      • 1...cxd5!
  • Keys
    • 1.f4!
      • 1...Ke3
        • 2.Qd3#
        • 2.Qf2#
      • 1...cxd5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT::QAB(B)
    • P(d);SBLOCK,XP(F)::S(H)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(H),XP(d)
      • Vars
        • P(d);XP(F)::S(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);
      • Threat
        • S(H),XP(d)
      • Vars
        • P(d);XP(F)::S(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);
      • Threat
        • S(H),XP(d)
      • Vars
        • P(d);XP(F)::S(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • K(c);S_FLIGHT,XP(E)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(B)
    • Try
      • P(C);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • P(d);XP(F)
  • Actual
    • P(C);
    • Vars
      • P(d);SBLOCK,XP(F)::S(H)
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