MESON Chess Problem Database

Problem Display
PID: 21534 (4RKN1/1p1p1Pp1/q6p/p1r2k1P/P2PN1Rb/2p3pP/Q1P3P1/8 w - - 0 1)

Batori, Alberto

1st Prize, Good Companions (October Magee TT), 1919

4RKN1/1p1p1Pp1/q6p/p1r2k1P/P2PN1Rb/2p3pP/Q1P3P1/8

#2

13 + 11

3132 The Good Companion Two-Mover 1922
3147 Chess Problems: Introduction to an Art 1963
3098 FIDE Album (1914-1944) (I) 1971
145 StrateGems 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Sd6#
    • 1...Qe2
      • 2.Sd6#
    • 1...Qd3
      • 2.Sd6#
    • 1...Qc4
      • 2.Sd6#
    • 1...Qb5
      • 2.Sd6#
    • 1...Qd6+
      • 2.Sxd6#
    • 1...Qa7
      • 2.Sd6#
    • 1...Qa8
      • 2.Sd6#
    • 1...Rc4
      • 2.Re5#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Re5
      • 2.Rxe5#
    • 1...Rc6
      • 2.Re5#
      • 2.Qd5#
    • 1...Rc7
      • 2.Re5#
      • 2.Qd5#
    • 1...Rc8
      • 2.Qd5#
    • 1...Bg5
      • 2.Sxg3#
    • 1...Bf6
      • 2.Sxg3#
    • 1...Be7+
      • 2.Sxe7#
    • 1...Bd8
      • 2.Sxg3#
    • 1...b6
      • 2.Sd6#
    • 1...d5
      • 2.Re5#
    • 1...d6
      • 2.Qe6#
    • 1...g5
      • 2.Se7#
    • 1...g6
      • 2.Sxh6#
  • Keys
    • 1.Qc4!
      • 1...Qd6+
        • 2.Sxd6#
      • 1...Be7+
        • 2.Sxe7#
      • 1...Qxc4
        • 2.Sd6#
      • 1...Rxc4
        • 2.Re5#
      • 1...Qb5
        • 2.Sd6#
      • 1...Qb6
        • 2.Qf1#
      • 1...Qc6
        • 2.Qf1#
      • 1...Qe6
        • 2.Qf1#
      • 1...Qf6
        • 2.Qf1#
      • 1...Qg6
        • 2.Qf1#
      • 1...Qa7
        • 2.Sd6#
        • 2.Qf1#
      • 1...Qa8
        • 2.Sd6#
        • 2.Qf1#
      • 1...Rb5
        • 2.Qf1#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Re5
        • 2.Rxe5#
      • 1...Rc6
        • 2.Re5#
        • 2.Qd5#
      • 1...Rc7
        • 2.Re5#
        • 2.Qd5#
      • 1...Rc8
        • 2.Qd5#
      • 1...Bg5
        • 2.Sxg3#
      • 1...Bf6
        • 2.Sxg3#
      • 1...Bd8
        • 2.Sxg3#
      • 1...b5
        • 2.Qf1#
      • 1...b6
        • 2.Sd6#
      • 1...d5
        • 2.Re5#
      • 1...d6
        • 2.Qe6#
      • 1...g5
        • 2.Se7#
      • 1...g6
        • 2.Sxh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • Q(g);N_GUARD::S(G)
    • Q(g);CHECK,N_GUARD::S(G),XQ(g)
    • Q(g);N_GUARD,P_PINR(K)::S(G)
    • R(e);N_GUARD::R1(K)
    • R(e);N_GUARD::QAR2(A),XR(e)
    • R(e);N_GUARD::R1(K),XR(e)
    • R(e);N_GUARD,P_PINR(K)::QAR2(A)
    • B(c);N_GUARD::S(G),XP(b)
    • B(c);CHECK,N_GUARD::S(M),XB(c)
    • P(i);S_CUTQ(g)::S(G)
    • P(j);S_CUTR(e)::R1(K)
    • P(j);N_GUARD,S_CUTQ(g)::QAB1(A)
    • P(k);S_CUTB(c)::S(M)
    • P(k);N_GUARD,S_CUTQ(g)::S(M),XP(h)
  • Actual
    • Q(A);
    • Vars
      • Q(g);CHECK,N_GUARD::S(G),XQ(g)
      • B(c);CHECK,N_GUARD::S(M),XB(c)
      • Q(g);N_GUARD,XQ(A)::S(G)
      • R(e);N_GUARD,XQ(A)::R1(K)
      • Q(g);N_GUARD::S(G)
      • Q(g);N_GUARD::QAR(A)
      • Q(g);N_GUARD,P_PINP(J)::QAR(A)
      • R(e);S_CUTQ(g)::QAR(A)
      • R(e);N_GUARD::QAR2(A),XR(e)
      • R(e);N_GUARD::R1(K),XR(e)
      • R(e);N_GUARD,P_PINR(K)::QAR2(A)
      • B(c);N_GUARD::S(G),XP(b)
      • P(i);S_CUTQ(g)::QAR(A)
      • P(i);S_CUTQ(g)::S(G)
      • P(j);S_CUTR(e)::R1(K)
      • P(j);N_GUARD,S_CUTQ(g)::QAB1(A)
      • P(k);S_CUTB(c)::S(M)
      • P(k);N_GUARD,S_CUTQ(g)::S(M),XP(h)
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