MESON Chess Problem Database

Problem Display
PID: 21416 (QK2k1BR/P1pp1NP1/8/4qN2/7B/b2n2r1/4R3/7b w - - 0 1)

Bettmann, Henry Wald

7. Magee Theme Supplement (February), 1919

QK2k1BR/P1pp1NP1/8/4qN2/7B/b2n2r1/4R3/7b

#2

10 + 8

3132 The Good Companion Two-Mover 1922
721 Variantim 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Kxc7#
    • 1...Rg2
      • 2.Kb7#
    • 1...Rf3
      • 2.Kb7#
    • 1...Bb7
      • 2.Kxb7#
    • 1...Sb4
      • 2.Rxe5#
    • 1...c5+
      • 2.S5d6#
      • 2.S7d6#
    • 1...c6+
      • 2.Kb7#
    • 1...d5
      • 2.Qc6#
  • Tries
    • 1.S7d6+?
      • 1...cxd6
        • 2.Ba2#
        • 2.Bb3#
        • 2.Bc4#
        • 2.Bd5#
        • 2.Be6#
      • 1...Bxd6!
    • 1.Sd8?
      • threat
        • 2.Bf7#
      • 1...c5+
        • 2.Sd6#
      • 1...d5
        • 2.Qc6#
      • 1...d6
        • 2.Be6#
      • 1...c6+!
    • 1.Bh7+?
      • 1...Bf8
        • 2.Rxf8#
        • 2.gxf8Q#
        • 2.gxf8R#
      • 1...Kxf7!
    • 1.Rxe5+?
      • 1...Be7
        • 2.Rxe7#
      • 1...Sxe5!
  • Keys
    • 1.S7h6!
      • threat
        • 2.Bf7#
      • 1...c5+
        • 2.Sd6#
      • 1...c6+
        • 2.Kb7#
      • 1...d5
        • 2.Qc6#
      • 1...d6
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(e);::QAR(G)+K(H),XP(f)
    • R(d);::QAR(G)+K(H)
    • B(a);::QAR(G)+K(H),XB(a)
    • S(c);N_GUARD,S_CUTB(b)::R(A),XQ(e)
    • P(f);CHECK::QAR(G)+K(H)
    • P(g);OGATEB::QAB(G)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • B(b);XS(E)
    • Try
      • S(E);
      • Threat
        • R(J)+B(I),DCHECK
      • Vars
        • P(f);CHECK,N_GUARD,S_CUTB(b)::S(C)
        • P(g);OGATEB::QAB(G)
        • P(g);S_CUTB(b)::R(J)+B(I)
      • Refutation
        • P(f);CHECK
    • Try
      • B(I);CHECK
      • Refutation
        • K(h);N_SPINQ(e),S_FLIGHT,XS(E)
    • Try
      • R(A);CHECK,XQ(e)
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::R1(A),XB(b)
      • Refutation
        • S(c);XR(A)
  • Actual
    • S(E);
    • Threat
      • R(J)+B(I),DCHECK
    • Vars
      • P(f);CHECK,N_GUARD,S_CUTB(b)::S(C)
      • P(f);CHECK::QAR(G)+K(H)
      • P(g);OGATEB::QAB(G)
      • P(g);S_CUTB(b)::R(J)+B(I)
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