MESON Chess Problem Database

Problem Display
PID: 21270 (3NnR2/K5p1/1R1N4/3Pk1r1/Q3B3/p6b/1q1Pn2b/B7 w - - 0 1)

Grabowski, Kazimierz

1st Prize, Brisbane Courier, 1917-1918

3NnR2/K5p1/1R1N4/3Pk1r1/Q3B3/p6b/1q1Pn2b/B7

#2

10 + 9

3098 FIDE Album (1914-1944) (I) 1971
56 The Problemist 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Rf5#
    • 1...Bf4
      • 2.S6f7#
    • 1...Sc3
      • 2.d4#
    • 1...Sf4
      • 2.S6f7#
    • 1...Sxd6
      • 2.Sc6#
  • Tries
    • 1.Bxb2+?
      • 1...Sc3
        • 2.Bxc3#
        • 2.d4#
      • 1...Sd4
        • 2.Bxd4#
        • 2.Qxd4#
      • 1...axb2!
    • 1.Bh1?
      • threat
        • 2.Qe4#
      • 1...Sxd6
        • 2.Sc6#
      • 1...Qd4
        • 2.Sc4#
      • 1...Rg4
        • 2.Rf5#
      • 1...Bf5
        • 2.S6f7#
      • 1...Sc3
        • 2.d4#
      • 1...Sg3
        • 2.Qf4#
      • 1...Sd4
        • 2.Sc4#
      • 1...Sf6
        • 2.S8f7#
      • 1...Bg2!
    • 1.Bg2?
      • threat
        • 2.Qe4#
      • 1...Sxd6
        • 2.Sc6#
      • 1...Qd4
        • 2.Sc4#
      • 1...Rg4
        • 2.Rf5#
      • 1...Bf5
        • 2.S6f7#
      • 1...Sc3
        • 2.d4#
      • 1...Sg3
        • 2.Qf4#
      • 1...Sd4
        • 2.Sc4#
      • 1...Sf6
        • 2.S8f7#
      • 1...Bxg2!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qe4#
      • 1...Sxd6
        • 2.Sc6#
      • 1...Qd4
        • 2.Sc4#
      • 1...Rg4
        • 2.Rf5#
      • 1...Bf5
        • 2.S6f7#
      • 1...Sc3
        • 2.d4#
      • 1...Sg3
        • 2.Qf4#
      • 1...Sd4
        • 2.Sc4#
      • 1...Sf6
        • 2.S8f7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(g);N_GUARD,S_CUTB(e)::R1(J)
    • B(c);SBLOCK::S(G)
    • S(b);N_GUARD,N_SPINQ(a),S_CUTQ(a)::P(B)
    • S(b);SBLOCK::S(G)
    • S(i);SBLOCK,XS(G)::S(I)
  • Tries
    • Try
      • B(A);CHECK,XQ(a)
      • Refutation
        • P(d);XB(A)
    • Try
      • B(D);
      • Threat
        • QAR1(C)
      • Vars
        • S(i);SBLOCK,XS(G)::S(I)
        • Q(a);P_PINR(F)::S(G)
        • R(g);N_GUARD,S_CUTB(e)::R1(J)
        • B(e);SBLOCK::S(G)
        • S(b);N_GUARD,N_SPINQ(a),S_CUTQ(a)::P(B)
        • S(b);N_GUARD,S_CUTB(c)::QAB1(C)
        • S(b);N_SPINQ(a),SBLOCK::S(G)
        • S(i);SBLOCK::S(I)
      • Refutation
        • B(e);
    • Try
      • B(D);
      • Threat
        • QAR1(C)
      • Vars
        • S(i);SBLOCK,XS(G)::S(I)
        • Q(a);P_PINR(F)::S(G)
        • R(g);N_GUARD,S_CUTB(e)::R1(J)
        • B(e);SBLOCK::S(G)
        • S(b);N_GUARD,N_SPINQ(a),S_CUTQ(a)::P(B)
        • S(b);N_GUARD,S_CUTB(c)::QAB1(C)
        • S(b);N_SPINQ(a),SBLOCK::S(G)
        • S(i);SBLOCK::S(I)
      • Refutation
        • B(e);XB(D)
  • Actual
    • B(D);
    • Threat
      • QAR1(C)
    • Vars
      • S(i);SBLOCK,XS(G)::S(I)
      • Q(a);P_PINR(F)::S(G)
      • R(g);N_GUARD,S_CUTB(e)::R1(J)
      • B(e);SBLOCK::S(G)
      • S(b);N_GUARD,N_SPINQ(a),S_CUTQ(a)::P(B)
      • S(b);N_GUARD,S_CUTB(c)::QAB1(C)
      • S(b);N_SPINQ(a),SBLOCK::S(G)
      • S(i);SBLOCK::S(I)
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