MESON Chess Problem Database

Problem Display
PID: 99980 (3K4/3p4/3k4/P1N1N1P1/2PpP3/3p4/3B4/4Q3 w - - 0 1)

Keller, Jozsefne

Magyar Sakkvilag, 1933

3K4/3p4/3k4/P1N1N1P1/2PpP3/3p4/3B4/4Q3

#2

9 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Bb4#
    • 1...Kxe5
      • 2.Qg3#
  • Tries
    • 1.Kc8?
      • 1...Kxc5
        • 2.Bb4#
      • 1...Kxe5
        • 2.Qg3#
      • 1...Ke7!
    • 1.Ke8?
      • 1...Kxc5
        • 2.Bb4#
      • 1...Kxe5
        • 2.Qg3#
      • 1...Kc7!
    • 1.Bc1?
      • 1...Kxc5
        • 2.Ba3#
      • 1...Kxe5
        • 2.Qg3#
      • 1...d2!
    • 1.Bb4?
      • 1...Kxe5
        • 2.Qg3#
      • 1...d2!
    • 1.Qf2?
      • threat
        • 2.Qxd4#
      • 1...Kxe5
        • 2.Bf4#
        • 2.Qg3#
        • 2.Qh2#
        • 2.Qf4#
        • 2.Qf6#
      • 1...Kxc5!
    • 1.Qh4?
      • 1...Kxe5
        • 2.Bf4#
        • 2.Qg3#
        • 2.Qh2#
        • 2.Qf4#
      • 1...Kxc5!
    • 1.Qa1?
      • threat
        • 2.Qxd4#
      • 1...Kxc5
        • 2.Qa3#
      • 1...Kxe5!
    • 1.Qb1?
      • 1...Kxc5
        • 2.Bb4#
        • 2.Qb4#
        • 2.Qb6#
      • 1...Kxe5!
    • 1.Qf1?
      • 1...Kxe5
        • 2.Bf4#
        • 2.Qf4#
        • 2.Qf6#
      • 1...Kxc5!
    • 1.Qg1?
      • threat
        • 2.Qxd4#
      • 1...Kxe5
        • 2.Qh2#
        • 2.Qg3#
      • 1...Kxc5!
    • 1.Qh1?
      • 1...Kxe5
        • 2.Qh2#
      • 1...Kxc5!
    • 1.a6?
      • 1...Kxe5
        • 2.Qg3#
      • 1...Kxc5!
    • 1.g6?
      • 1...Kxc5
        • 2.Bb4#
      • 1...Kxe5!
  • Keys
    • 1.Qc1!
      • 1...Kxc5
        • 2.Qa3#
      • 1...Kxe5
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(F)::B(B)
    • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::B(B)
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::B(B)
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::B(B)
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XS(F)
    • Try
      • Q(A);
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(b)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(A)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XS(G)
    • Try
      • Q(A);
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • Q(A);
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XS(F)
    • Try
      • Q(A);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • P(E);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • P(H);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::B(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
  • Actual
    • Q(A);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(A)
      • K(c);OGATEB,S_FLIGHT,XS(G)::B(B)
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