MESON Chess Problem Database

Problem Display
PID: 56570 (4B1NK/8/4p3/8/4pQPk/5brq/5P2/6N1 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2004

4B1NK/8/4p3/8/4pQPk/5brq/5P2/6N1

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.fxg3#
    • 1...Qxg4
      • 2.fxg3#
    • 1...Qh1
      • 2.fxg3#
    • 1...Rxg4
      • 2.Qh6#
    • 1...Bxg4
      • 2.Qf6#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Qh6#
      • 1...Qxg4
        • 2.fxg3#
      • 1...Bxg4!
    • 1.Sh6?
      • threat
        • 2.Qf6#
      • 1...Qxg4
        • 2.fxg3#
      • 1...Rxg4!
    • 1.Qxg3+?
      • 1...Kg5+
        • 2.Sxh3#
      • 1...Qxg3!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sg6#
      • 1...Qxg4
        • 2.fxg3#
      • 1...Rxg4
        • 2.Qh6#
      • 1...Bxg4
        • 2.Qf6#

This is a version of 52008

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(c);N_GUARD::P(B),XR(b)
    • Q(c);N_GUARD,P_SPINQ(c),XP(D)::P(B),XR(b)
    • R(b);P_SPINR(b),SBLOCK,XP(D)::QAR2(C)
    • B(a);P_SPINB(a),SBLOCK,XP(D)::QAB(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR2(C)
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c),XP(D)::P(B),XR(b)
      • Refutation
        • B(a);P_SPINB(a),XP(D)
    • Try
      • S(F);
      • Threat
        • QAB(C)
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c),XP(D)::P(B),XR(b)
      • Refutation
        • R(b);P_SPINR(b),XP(D)
    • Try
      • Q(C);CHECK,XR(b)
      • Vars
        • K(e);CHECK,S_FLIGHT::S(A),XQ(c)
      • Refutation
        • Q(c);XQ(C)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • Q(c);N_GUARD,P_SPINQ(c),XP(D)::P(B),XR(b)
      • R(b);P_SPINR(b),SBLOCK,XP(D)::QAR2(C)
      • B(a);P_SPINB(a),SBLOCK,XP(D)::QAB(C)
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