MESON Chess Problem Database

Problem Display
PID: 276525 (B5R1/3Q3p/5PbP/R1BK2k1/5N2/4p2P/4P3/8 w - - 0 1)

Bakke, Nils Adrian

Mathiassen, Olaf

Stella Polaris, 1970

B5R1/3Q3p/5PbP/R1BK2k1/5N2/4p2P/4P3/8

#2

11 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qg4#
    • 1...Kh4
      • 2.Qg4#
  • Tries
    • 1.Kd4?
      • 1...Kxf4
        • 2.Bd6#
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6
        • 2.Bf8#
      • 1...Kxf6!
    • 1.Ke5?
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6!
    • 1.Kc6?
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxf6
        • 2.Bd4#
      • 1...Kxh6
        • 2.Bf8#
      • 1...Kxf4!
    • 1.Kd6?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxf6
        • 2.Bd4#
      • 1...Kxh6!
    • 1.Ke6?
      • 1...Kxf4
        • 2.Bd6#
      • 1...Kxh6
        • 2.Bf8#
      • 1...Kh4!
    • 1.Bd4?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6!
    • 1.Bb6?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxf6
        • 2.Bd8#
      • 1...Kxh6!
    • 1.Be7?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6!
    • 1.Bf8?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxf6!
    • 1.Ra6?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6!
    • 1.Rxg6+?
      • 1...Kxf4
        • 2.Bd6#
        • 2.Ra4#
        • 2.Rg4#
        • 2.Qg4#
      • 1...Kh4
        • 2.Rg4#
        • 2.Qg4#
      • 1...hxg6!
    • 1.Rg7?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxf6
        • 2.Be7#
      • 1...Kxh6!
    • 1.Qg4+?
      • 1...Kxh6
        • 2.Bf8#
      • 1...Kxf6!
    • 1.Qf5+?
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6
        • 2.Bf8#
      • 1...Kxf5!
    • 1.Qe6?
      • 1...Kxf4
        • 2.Qg4#
        • 2.Qe5#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh6!
    • 1.h4+?
      • 1...Kxf4
        • 2.Bd6#
      • 1...Kxf6
        • 2.Bd4#
        • 2.Ra6#
        • 2.Qe6#
      • 1...Kxh6
        • 2.Bf8#
        • 2.Qg7#
      • 1...Kxh4!
  • Keys
    • 1.Kc4!
      • 1...Kxf4
        • 2.Bd6#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxf6
        • 2.Bd4#
      • 1...Kxh6
        • 2.Bf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
    • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(H)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(G)::B(E)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(H)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XS(C)
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(G)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::B(E)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(H)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
        • K(b);N_SPINB(c),OGATEB,S_FLIGHT,XP(G)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • B(E);
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)
    • Try
      • R(D);
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • R(K);CHECK,XB(c)
      • Refutation
        • P(d);XR(K)
    • Try
      • R(K);
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
        • K(b);N_SPINB(c),OGATEB,S_FLIGHT,XP(G)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(H)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(G)
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(H)::B(E)
      • Refutation
        • K(b);N_SPINB(c),P-FLIGHT,XQ(I)
    • Try
      • Q(I);
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(H)
    • Try
      • P(B);CHECK
      • Vars
        • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT,XP(B)
  • Actual
    • K(F);S_FLIGHT
    • Vars
      • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XS(C)::B(E)
      • K(b);N_GUARD,N_SPINB(c),S_FLIGHT::QAR1(I)
      • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(G)::B(E)
      • K(b);N_GUARD,N_SPINB(c),S_FLIGHT,XP(H)::B(E)
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