MESON Chess Problem Database

Problem Display
PID: 110741 (8/8/2N5/7p/1Pp3pR/NpkpQ1KP/pp2P3/nb6 w - - 0 1)

Fleck, Ferenc

3rd Prize, Sportowiec, 1957

8/8/2N5/7p/1Pp3pR/NpkpQ1KP/pp2P3/nb6

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc2
      • 2.Sb5#
    • 1...Sc2
      • 2.Sb5#
    • 1...gxh3
      • 2.Rxc4#
  • Tries
    • 1.Kf2?
      • 1...gxh3
        • 2.Rxc4#
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...g3+!
    • 1.Kg2?
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...g3
        • 2.Rxc4#
      • 1...gxh3+!
    • 1.Kh2?
      • 1...gxh3
        • 2.Rxc4#
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...g3+!
    • 1.Rxh5?
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...gxh3!
    • 1.Qf4?
      • 1...dxe2
        • 2.Qd4#
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...d2
        • 2.Qe5#
        • 2.Qxc4#
        • 2.Qd4#
        • 2.Qf6#
      • 1...gxh3!
    • 1.Qg5?
      • 1...gxh3
        • 2.Rxc4#
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...d2
        • 2.Qf6#
        • 2.Qe5#
        • 2.Qg7#
      • 1...dxe2!
    • 1.Qh6?
      • 1...gxh3
        • 2.Rxc4#
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...d2
        • 2.Qg7#
        • 2.Qf6#
        • 2.Qh8#
      • 1...dxe2!
    • 1.exd3?
      • 1...Bxd3
        • 2.Qe1#
      • 1...gxh3
        • 2.Rxc4#
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...cxd3!
    • 1.hxg4?
      • 1...Bc2
        • 2.Sb5#
      • 1...Sc2
        • 2.Sb5#
      • 1...hxg4!
  • Keys
    • 1.Sxc4!
      • 1...Kc2
        • 2.Qd2#
      • 1...Kxc4
        • 2.Qc5#
      • 1...gxh3
        • 2.Qd2#
      • 1...Bc2
        • 2.Qd4#
      • 1...Sc2
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::S(B)
    • S(a);SBLOCK::S(B)
    • P(i);OGATE,XP(E)::R1(G),XP(h)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(i);OGATE,XP(E)::R1(G),XP(h)
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(i);CHECK
    • Try
      • K(D);P-FLIGHT
      • Vars
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
        • P(i);OGATE::R1(G),XP(h)
      • Refutation
        • P(i);CHECK,XP(E)
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(i);OGATE,XP(E)::R1(G),XP(h)
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(i);CHECK
    • Try
      • R(G);XP(j)
      • Vars
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(i);XP(E)
    • Try
      • Q(C);N_PINP(g)
      • Vars
        • P(g);XP(A)::QAB1(C)
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(i);XP(E)
    • Try
      • Q(C);N_PINP(g)
      • Vars
        • P(i);OGATE,XP(E)::R1(G),XP(h)
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(g);XP(A)
    • Try
      • Q(C);N_PINP(g)
      • Vars
        • P(i);OGATE,XP(E)::R1(G),XP(h)
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(g);XP(A)
    • Try
      • P(A);XP(g)
      • Vars
        • B(b);P_SPINB(b),SBLOCK,XP(A)::QAB(C)
        • P(i);OGATE,XP(E)::R1(G),XP(h)
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(h);P_SPINP(h),XP(A)
    • Try
      • P(E);XP(i)
      • Vars
        • B(b);SBLOCK::S(B)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(j);XP(E)
  • Actual
    • S(B);XP(h)
    • Vars
      • K(f);N_SPINP(g),P-FLIGHT::QAR1(C)
      • K(f);N_SPINP(g),OGATEB,P-FLIGHT,P_SPINP(i),XS(B)::QAR1(C)
      • P(i);XP(E)::QAB1(C)
      • B(b);SBLOCK::QAB1(C)
      • S(a);S_CUTB(b)::QAR1(C),XP(g)
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