MESON Chess Problem Database

Problem Display
PID: 146635 (5k1q/2p3R1/7p/1r2QpN1/Bb6/8/8/5K2 w - - 0 1)

Grabowski, Kazimierz

Good Companions (February Meredith Ty.), 1918

5k1q/2p3R1/7p/1r2QpN1/Bb6/8/8/5K2

#2

5 + 7

15 British Chess Magazine 1918

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7
      • 2.Sxh7#
    • 1...Ra5
      • 2.Se6#
      • 2.Qf6#
    • 1...Rc5
      • 2.Se6#
      • 2.Qf6#
      • 2.Qe7#
    • 1...Rd5
      • 2.Se6#
      • 2.Qf6#
    • 1...Rb7
      • 2.Se6#
      • 2.Qf6#
    • 1...Rb8
      • 2.Se6#
      • 2.Qf6#
    • 1...Be1
      • 2.Qe7#
    • 1...Bd2
      • 2.Qe7#
    • 1...Bc3
      • 2.Qe7#
    • 1...Ba5
      • 2.Qe7#
    • 1...Be7
      • 2.Qxe7#
    • 1...c5
      • 2.Qe7#
  • Tries
    • 1.Qxc7?
      • threat
        • 2.Qf7#
      • 1...Ke8
        • 2.Qb8#
        • 2.Qc8#
      • 1...Qxg7
        • 2.Qd8#
      • 1...Be7
        • 2.Qxe7#
      • 1...Rb7
        • 2.Se6#
      • 1...Qg8!
    • 1.Qxf5+?
      • 1...Kxg7
        • 2.Qf7#
      • 1...Ke8
        • 2.Qc8#
      • 1...Rxf5+!
    • 1.Qe6?
      • threat
        • 2.Qf7#
      • 1...Kxg7
        • 2.Qf7#
      • 1...Qg8
        • 2.Rxg8#
        • 2.Qxg8#
      • 1...Qxg7!
    • 1.Qe8+?
      • 1...Kxg7
        • 2.Qf7#
      • 1...Kxe8!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qf7#
      • 1...Kxg7
        • 2.Qf7#
      • 1...Ke8
        • 2.Qa8#
      • 1...Qxg7
        • 2.Qd8#
      • 1...Rxd5
        • 2.Se6#
      • 1...Qg8
        • 2.Qxg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD::S(D),XQ(g)
    • B(a);N_GUARD::QAB1(C)
    • B(a);N_GUARD::QAB1(C),XB(a)
    • P(e);S_CUTB(a)::QAB1(C)
  • Tries
    • Try
      • Q(C);XP(e)
      • Threat
        • QAR1(C)
      • Vars
        • Q(g);SBLOCK,XR(E)::QAR2(C)
        • B(a);N_GUARD::QAB1(C),XB(a)
        • R(b);::S(D)
      • Refutation
        • Q(g);
    • Try
      • Q(C);CHECK,XP(c)
      • Vars
        • K(f);S_FLIGHT,XR(E)::QAR1(C)
        • K(f);P-FLIGHT,P_SPINR(b)::QAR2(C)
      • Refutation
        • R(b);CHECK,XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(f);S_FLIGHT,XR(E)::QAR1(C)
      • Refutation
        • Q(g);XR(E)
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);S_FLIGHT,XR(E)::QAR1(C)
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(b),XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(f);S_FLIGHT,XR(E)::QAR1(C)
      • K(f);P-FLIGHT,P_SPINR(b)::QAR(C)
      • Q(g);SBLOCK,XR(E)::QAR2(C)
      • R(b);XQ(C)::S(D)
      • Q(g);N_GUARD::QAR1(C),XQ(g)
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