MESON Chess Problem Database

Problem Display
PID: 106123 (2q5/5Q2/3p4/3Pk1p1/3Np1b1/3RKp2/3N4/2B1R3 w - - 0 1)

Fischl, Josef

Match: Thuringen - Wurzburg, 1938

2q5/5Q2/3p4/3Pk1p1/3Np1b1/3RKp2/3N4/2B1R3

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Sc4#
      • 2.Sc6#
    • 1...Qe6
      • 2.Sc6#
    • 1...Qb7
      • 2.Sc4#
    • 1...Qd7
      • 2.Sc4#
    • 1...Qc4
      • 2.Sxc4#
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qa8
      • 2.Sc4#
    • 1...Qb8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Qd8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Qe8
      • 2.Sc4#
    • 1...Qf8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Qg8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Qh8
      • 2.Sc4#
      • 2.Sc6#
    • 1...exd3
      • 2.Kxd3#
  • Tries
    • 1.S2xf3+?
      • 1...exf3
        • 2.Kd2#
        • 2.Kf2#
      • 1...Bxf3!
    • 1.S4xf3+?
      • 1...exf3
        • 2.Kf2#
      • 1...Bxf3!
    • 1.Bb2?
      • threat
        • 2.S4xf3#
        • 2.Sc6#
      • 1...Qc3
        • 2.Sc6#
      • 1...Qc6
        • 2.S4xf3#
        • 2.Sxc6#
      • 1...f2
        • 2.S4f3#
        • 2.Sc6#
      • 1...Qc5!
  • Keys
    • 1.Kf2!
      • threat
        • 2.Rxe4#
      • 1...e3+
        • 2.Rexe3#
      • 1...Qf5
        • 2.Sc4#
      • 1...Qe6
        • 2.Sc6#
      • 1...Bf5
        • 2.S2xf3#
      • 1...Be6
        • 2.S4xf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD::S(F)
    • Q(g);N_GUARD::S(C)
    • Q(g);N_GUARD::S(C),XQ(g)
    • Q(g);N_GUARD::S(F),XQ(g)
    • P(b);XR(D)::R(B)+K(E),XP(b)
  • Tries
    • Try
      • S(C);CHECK,XP(a)
      • Refutation
        • B(c);XS(C)
    • Try
      • S(F);CHECK,XP(a)
      • Vars
        • P(b);S_CUTB(c),XS(F)::R(B)+K(E)
      • Refutation
        • B(c);XS(F)
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • Q(g);P_PINR(D)::S(F)
      • Refutation
        • Q(g);P_PINS(F)
  • Actual
    • K(E);P_PINP(b),S_FLIGHT
    • Threat
      • R1(B),XP(b)
    • Vars
      • P(b);CHECK,OGATEB::R(B),XP(b)
      • Q(g);N_GUARD::S(C)
      • Q(g);N_GUARD::S(F)
      • B(c);N_GUARD::S(C),XP(a)
      • B(c);N_GUARD::S(F),XP(a)
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