MESON Chess Problem Database

Problem Display
PID: 120894 (8/2Q3p1/1p4Pb/1P4p1/1p1k2P1/1p1P4/1N5p/B3K2B w - - 0 1)

Hernitz, Zvonimir

2nd HM., SK Partizan Ty., 1958

8/2Q3p1/1p4Pb/1P4p1/1p1k2P1/1p1P4/1N5p/B3K2B

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe5#
  • Tries
    • 1.Sd1+?
      • 1...b2
        • 2.Qd6#
      • 1...Kxd3!
    • 1.Qxh2?
      • 1...Ke3
        • 2.Qe5#
        • 2.Qf2#
      • 1...Kc5
        • 2.Qe5#
      • 1...Kc3!
    • 1.Qg3?
      • 1...Kc5
        • 2.Qe5#
      • 1...Kc3!
    • 1.Qf4+?
      • 1...Kc3
        • 2.Qc4#
      • 1...Kc5
        • 2.Qe5#
      • 1...gxf4!
    • 1.Qxb6+?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke5!
    • 1.Qd6+?
      • 1...Ke3
        • 2.Sd1#
        • 2.Sc4#
        • 2.Qe5#
      • 1...Kc3!
    • 1.Qb8?
      • 1...Ke3
        • 2.Qe5#
      • 1...Kc5
        • 2.Qe5#
      • 1...Kc3!
    • 1.Qc4+?
      • 1...Ke3
        • 2.Sd1#
        • 2.Qe4#
      • 1...Ke5!
    • 1.Qc6?
      • 1...Ke3
        • 2.Qe4#
      • 1...Ke5!
    • 1.Qxg7+?
      • 1...Ke3
        • 2.Qe5#
      • 1...Kc5
        • 2.Qe5#
      • 1...Bxg7!
  • Keys
    • 1.Qf7!
      • 1...Kc3
        • 2.Qc4#
      • 1...Ke3
        • 2.Qf2#
      • 1...Kc5
        • 2.Qd5#
      • 1...Ke5
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::QAR2(I)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAR2(I)
      • Refutation
        • K(d);P-FLIGHT,XP(E)
    • Try
      • Q(I);XP(a)
      • Vars
        • K(d);S_FLIGHT::QAR2(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(d);S_FLIGHT::QAR2(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(I)
        • K(d);S_FLIGHT::QAR2(I)
      • Refutation
        • P(e);XQ(I)
    • Try
      • Q(I);CHECK,XP(f)
      • Vars
        • K(d);S_FLIGHT::QAR2(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(d);S_FLIGHT::QAR2(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(d);S_FLIGHT::QAR1(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK,XP(h)
      • Vars
        • K(d);S_FLIGHT::QAR2(I)
      • Refutation
        • B(g);XQ(I)
  • Actual
    • Q(I);
    • Vars
      • K(d);S_FLIGHT::QAR1(I)
      • K(d);S_FLIGHT::QAB1(I)
      • K(d);S_FLIGHT::B(A)+S(D),DCHECK
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