MESON Chess Problem Database

Problem Display
PID: 9554 (8/K1pr4/2B2P2/p2R2B1/4k2N/6p1/qp1p1rP1/7Q w - - 0 1)

Volf, Josef

Lidove noviny, 1905

8/K1pr4/2B2P2/p2R2B1/4k2N/6p1/qp1p1rP1/7Q

#2

8 + 9

3360 Simple Two-move Themes 1924
887 Mate in Two Moves 1931
5424 Versunkene Schatze 1998
56 The Problemist 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Qxb1#
    • 1...Rxg2
      • 2.Qxg2#
    • 1...Rf3
      • 2.gxf3#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qh4#
      • 1...Qxd5
        • 2.Qb1#
      • 1...Rxg2
        • 2.Sxd2#
      • 1...Rxf3
        • 2.gxf3#
      • 1...Rxd5
        • 2.Qh7#
      • 1...Rh7
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(a);N_GUARD::QAB(A),XQ(a)
    • R(d);OGATE,P_SPINR(d),XP(B)::QAB(A),XR(d)
    • R(d);OGATE::P(B),XR(d)
  • Actual
    • S(C);
    • Threat
      • QAR(A)
    • Vars
      • Q(a);N_GUARD,P_SPINQ(a),XR(D)::QAB(A)
      • R(d);N_GUARD,XP(B)::S(C),XP(c)
      • R(d);OGATE,XS(C)::P(B),XR(d)
      • R(i);N_GUARD,P_SPINR(i),XR(D)::QAB(A)
      • R(i);N_GUARD::QAB(A),XR(i)
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