MESON Chess Problem Database

Problem Display
PID: 141000 (BB6/1N1N4/1K3P1p/2PP2pR/4k3/2Pp2PP/3Q1n1p/5Rbr w - - 0 1)

Valuska, Jan

Buletin Problemistic, 1974

BB6/1N1N4/1K3P1p/2PP2pR/4k3/2Pp2PP/3Q1n1p/5Rbr

#2

14 + 8

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qxd3#
    • 1...Sd1
      • 2.Sd6#
    • 1...Sxh3
      • 2.Sd6#
    • 1...Sg4
      • 2.Sd6#
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Kb5?
      • 1...Kxd5
        • 2.Sd8#
      • 1...Kf5
        • 2.Qxd3#
      • 1...Sxh3
        • 2.Sd6#
      • 1...Sd1
        • 2.Sd6#
      • 1...Sg4
        • 2.Sd6#
      • 1...g4
        • 2.Qf4#
      • 1...Kf3!
    • 1.Kc6?
      • 1...Kf5
        • 2.Qxd3#
      • 1...Sxh3
        • 2.Sd6#
      • 1...Sd1
        • 2.Sd6#
      • 1...Sg4
        • 2.Sd6#
      • 1...g4
        • 2.Qf4#
      • 1...Kf3!
    • 1.Sa5?
      • 1...Kf5
        • 2.Qxd3#
      • 1...Sxh3
        • 2.d6#
      • 1...Sd1
        • 2.d6#
      • 1...Sg4
        • 2.d6#
      • 1...g4
        • 2.Qf4#
        • 2.d6#
      • 1...Kf3!
    • 1.Sd8?
      • 1...Kf5
        • 2.Qxd3#
      • 1...Sxh3
        • 2.d6#
      • 1...Sd1
        • 2.d6#
      • 1...Sg4
        • 2.d6#
      • 1...g4
        • 2.Qf4#
        • 2.d6#
      • 1...Kf3!
    • 1.Qe3+?
      • 1...Kxd5
        • 2.Sa5#
        • 2.Sd6#
      • 1...Kf5
        • 2.Qxd3#
      • 1...Kxe3!
    • 1.Qf4+?
      • 1...Kxd5
        • 2.Sd8#
      • 1...gxf4!
    • 1.Qe2+?
      • 1...Kxd5
        • 2.Sa5#
        • 2.Sd6#
      • 1...Kf5
        • 2.Qxd3#
      • 1...dxe2!
  • Keys
    • 1.Se5!
      • 1...Kxd5
        • 2.Sd8#
      • 1...Kf5
        • 2.Qf4#
      • 1...Sxh3
        • 2.Qxd3#
      • 1...Sd1
        • 2.Qxd3#
      • 1...Sg4
        • 2.Qxd3#
      • 1...g4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAB(B),XP(e)
    • S(c);P_PINP(F)::S(K)
    • S(c);P_PINP(F),XP(E)::S(K)
    • P(g);N_GUARD::QAR1(B)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT,XP(G)::B(M)+S(K)
        • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAB(B),XP(e)
        • S(c);XP(E)::S(K)
        • S(c);::S(K)
        • P(g);N_GUARD::QAR1(B)
      • Refutation
        • K(f);P_SPINS(c),S_FLIGHT
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAB(B),XP(e)
        • S(c);XP(E)::S(K)
        • S(c);::S(K)
        • P(g);N_GUARD::QAR1(B)
      • Refutation
        • K(f);P_SPINS(c),S_FLIGHT
    • Try
      • S(K);
      • Vars
        • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAB(B),XP(e)
        • S(c);P_PINP(F),XP(E)::B(M)+P(G)
        • S(c);P_PINP(F)::B(M)+P(G)
      • Refutation
        • K(f);P_SPINS(c),S_FLIGHT
    • Try
      • S(K);
      • Vars
        • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAB(B),XP(e)
        • S(c);P_PINP(F),XP(E)::B(M)+P(G)
        • S(c);P_PINP(F)::B(M)+P(G)
      • Refutation
        • K(f);P_SPINS(c),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAB(B),XP(e)
      • Refutation
        • K(f);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(f);P_SPINP(g),S_FLIGHT,XP(G)::B(M)+S(K)
      • Refutation
        • P(g);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAB(B),XP(e)
      • Refutation
        • P(e);XQ(B)
  • Actual
    • S(L);
    • Vars
      • K(f);P_SPINP(e),S_FLIGHT,XP(G)::B(M)+S(K)
      • K(f);P_SPINP(g),P_SPINS(c),S_FLIGHT::QAR1(B)
      • S(c);N_GUARD,P_PINP(F),XP(E)::QAB1(B),XP(e)
      • S(c);N_GUARD,P_PINP(F)::QAB1(B),XP(e)
      • P(g);::S(K)
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