MESON Chess Problem Database

Problem Display
PID: 22105 (8/B1p2N2/1n2B3/1pk5/2pN4/p1Q5/K1P5/8 w - - 0 1)

Kovacs, Florian Janos

Neukomm, Gyula (Julius) R

Gyori Tornakonyv, 1924

8/B1p2N2/1n2B3/1pk5/2pN4/p1Q5/K1P5/8

#2

7 + 6

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qxc4#
    • 1...c6
      • 2.Sb3#
  • Tries
    • 1.Ka1?
      • 1...b4
        • 2.Qxc4#
      • 1...c6
        • 2.Sb3#
      • 1...a2!
    • 1.Kb1?
      • 1...b4
        • 2.Qxc4#
      • 1...c6
        • 2.Sb3#
      • 1...a2+!
    • 1.Kxa3?
      • 1...c6
        • 2.Sb3#
      • 1...b4+!
    • 1.Sc6?
      • 1...b4
        • 2.Qxc4#
      • 1...Kxc6!
    • 1.Qe1?
      • 1...Kxd4
        • 2.Qe5#
      • 1...c3
        • 2.Qxc3#
      • 1...b4
        • 2.Qe5#
      • 1...c6!
    • 1.Qa5?
      • 1...c6
        • 2.Bxb6#
      • 1...c3
        • 2.Qxc3#
      • 1...Kxd4!
    • 1.Qe3?
      • 1...Kb4
        • 2.Qxa3#
      • 1...c3
        • 2.Qxc3#
      • 1...b4
        • 2.Qe5#
      • 1...c6!
  • Keys
    • 1.Qg3!
      • 1...Kb4
        • 2.Qxa3#
      • 1...Kxd4
        • 2.Qe5#
      • 1...c6
        • 2.Qd6#
      • 1...c3
        • 2.Qxc3#
      • 1...b4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR1(C),XP(b)
    • P(f);SBLOCK::S(D)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(C),XP(b)
        • P(f);SBLOCK::S(D)
      • Refutation
        • P(a);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(C),XP(b)
        • P(f);SBLOCK::S(D)
      • Refutation
        • P(a);CHECK
    • Try
      • K(A);P-FLIGHT,XP(a)
      • Vars
        • P(f);SBLOCK::S(D)
      • Refutation
        • P(c);CHECK
    • Try
      • S(D);
      • Vars
        • P(c);N_GUARD::QAR1(C),XP(b)
      • Refutation
        • K(d);N_SPINS(e),P-FLIGHT,XS(D)
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • K(d);S_FLIGHT,XS(D)::QAB1(C)
        • P(b);OGATEB::QAR2(C),XP(b)
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • P(f);
    • Try
      • Q(C);N_PINP(b),P_PINP(c)
      • Vars
        • P(f);N_GUARD::B(F),XS(e)
        • P(b);OGATEB::QAR2(C),XP(b)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT,XS(D)
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • K(d);N_SPINS(e),S_FLIGHT::QAB1(C),XP(a)
        • P(b);OGATEB::QAR2(C),XP(b)
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • P(f);
  • Actual
    • Q(C);N_PINP(b)
    • Vars
      • K(d);N_SPINS(e),S_FLIGHT::QAB1(C),XP(a)
      • K(d);S_FLIGHT,XS(D)::QAB1(C)
      • P(f);N_GUARD::QAB1(C)
      • P(b);OGATEB::QAR2(C),XP(b)
      • P(c);SBLOCK::QAR2(C)
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