MESON Chess Problem Database

Problem Display
PID: 78944 (5q2/BN1R1P1P/2p1B1p1/4k1P1/1p4Qp/8/5P1K/br2rb2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

The Tablet, 1960

(First published on Sat Oct 29 1960)

5q2/BN1R1P1P/2p1B1p1/4k1P1/1p4Qp/8/5P1K/br2rb2

#2

10 + 10

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.h8Q#
      • 2.h8B#
    • 1...Qd6
      • 2.h8Q#
      • 2.h8B#
    • 1...Qh6
      • 2.Bb8#
    • 1...Qg7
      • 2.Bb8#
    • 1...Qxf7
      • 2.Bb8#
    • 1...Qb8
      • 2.Bxb8#
    • 1...Rb2
      • 2.Bd4#
    • 1...Bd4
      • 2.Bxd4#
    • 1...c5
      • 2.Rd5#
  • Tries
    • 1.Sd6?
      • threat
        • 2.f4#
      • 1...Qxd6
        • 2.h8Q#
        • 2.h8B#
      • 1...Qxf7
        • 2.Sxf7#
      • 1...Rb2
        • 2.Bd4#
      • 1...Re2
        • 2.Sc4#
      • 1...Re4
        • 2.Qxe4#
      • 1...c5!
    • 1.Bb8+?
      • 1...Qd6
        • 2.Bxd6#
        • 2.h8Q#
        • 2.h8B#
      • 1...Qxb8!
    • 1.h8Q+?
      • 1...Qg7
        • 2.Bb8#
        • 2.Qxg7#
        • 2.Qb8#
      • 1...Qxh8!
    • 1.h8B+?
      • 1...Qg7
        • 2.Bb8#
        • 2.Bxg7#
      • 1...Qxh8!
  • Keys
    • 1.Sc5!
      • threat
        • 2.f4#
      • 1...Qxc5
        • 2.h8Q#
        • 2.h8B#
      • 1...Qxf7
        • 2.Bb8#
      • 1...Qd6
        • 2.h8Q#
        • 2.h8B#
      • 1...Rb2
        • 2.Qd4#
      • 1...Re2
        • 2.Sd3#
      • 1...Re4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(j);N_GUARD::P=Q
    • Q(j);N_GUARD::B(F)
    • Q(j);N_GUARD,XP(I)::B(F)
    • Q(j);N_GUARD::B(F),XQ(j)
    • R(b);P_PINP(A),S_CUTB(a)::B(F)
    • B(a);N_GUARD::B(F),XB(a)
    • P(h);N_GUARD::R1(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • P(A)
      • Vars
        • Q(j);N_GUARD,XS(G)::P=Q
        • Q(j);XP(I)::S(G),XQ(j)
        • R(b);P_PINP(A),S_CUTB(a)::B(F)
        • R(c);P_PINP(A),S_CUTB(d)::S(G)
        • R(c);N_GUARD::QAR1(C),XR(c)
      • Refutation
        • P(h);
    • Try
      • B(F);CHECK
      • Refutation
        • Q(j);XB(F)
    • Try
      • P(J);CHECK
      • Refutation
        • Q(j);XQ(J)
    • Try
      • P(J);CHECK
      • Refutation
        • Q(j);XB(J)
  • Actual
    • S(G);
    • Threat
      • P(A)
    • Vars
      • Q(j);N_GUARD,XS(G)::P=Q
      • Q(j);N_GUARD,XP(I)::B(F)
      • Q(j);N_GUARD::P=Q
      • R(b);P_PINP(A),S_CUTB(a)::QAB1(C)
      • R(c);P_PINP(A),S_CUTB(d)::S(G)
      • R(c);N_GUARD::QAR1(C),XR(c)
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