MESON Chess Problem Database

Problem Display
PID: 17224 (8/8/8/8/6K1/2Qpk1B1/8/4nB2 w - - 0 1)

Neukomm, Gyula (Julius) R

Magyar Sakkvilag, 1925

8/8/8/8/6K1/2Qpk1B1/8/4nB2

#2

4 + 3

273 Mat Plus 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe5#
    • 1...Sc2
      • 2.Qxd3#
    • 1...Sg2
      • 2.Qxd3#
    • 1...Sf3
      • 2.Qxd3#
  • Tries
    • 1.Kf5?
      • 1...Sc2
        • 2.Qxd3#
      • 1...Sg2
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qxd3#
      • 1...Kf3!
    • 1.Bf2+?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxf2!
    • 1.Bf4+?
      • 1...Ke4
        • 2.Qe5#
        • 2.Qc4#
      • 1...Kf2!
    • 1.Bh4?
      • 1...Sc2
        • 2.Qxd3#
      • 1...Sg2
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qxd3#
      • 1...Ke4!
    • 1.Qc4?
      • threat
        • 2.Qf4#
      • 1...Sg2
        • 2.Qxd3#
      • 1...Kd2!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kd2!
  • Keys
    • 1.Be2!
      • 1...Kxe2
        • 2.Qxe1#
      • 1...Ke4
        • 2.Qe5#
      • 1...Sc2
        • 2.Qxd3#
      • 1...Sg2
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),P-FLIGHT::QAR1(B)
    • S(a);N_GUARD::QAR1(B),XP(b)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(a);N_GUARD::QAR1(B),XP(b)
        • S(a);N_GUARD,SBLOCK::QAR1(B),XP(b)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT,XB(C)
    • Try
      • B(C);CHECK
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • B(C);
      • Vars
        • S(a);N_GUARD::QAR1(B),XP(b)
      • Refutation
        • K(c);N_SPINP(b),P-FLIGHT
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAB1(B)
      • Vars
        • S(a);N_GUARD::QAR1(B),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(c);N_SPINP(b),OGATEB,P-FLIGHT,XB(A)::QAR1(B),XS(a)
      • K(c);N_SPINP(b),P-FLIGHT::QAR1(B)
      • S(a);N_GUARD::QAR1(B),XP(b)
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