MESON Chess Problem Database

Problem Display
PID: 103557 (1rR4q/nn1N2Bp/2b5/2P1p1bQ/2k2r2/1R1pp3/K1N5/7B w - - 0 1)

Grzankowski, Waclaw

Szachista Polski, 1946

1rR4q/nn1N2Bp/2b5/2P1p1bQ/2k2r2/1R1pp3/K1N5/7B

#2

9 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sa3#
    • 1...Bxh1
      • 2.Sb6#
    • 1...Bg2
      • 2.Sb6#
    • 1...Bf3
      • 2.Sb6#
    • 1...Ba4
      • 2.Sxe5#
      • 2.Sb6#
    • 1...Be4
      • 2.Sb6#
    • 1...Bb5
      • 2.Sxe5#
      • 2.Sb6#
    • 1...Bd5
      • 2.Sxe5#
      • 2.Sb6#
    • 1...Sxc5
      • 2.Sxe5#
    • 1...d2
      • 2.Qe2#
    • 1...e4
      • 2.Sxe3#
  • Tries
    • 1.Bd5+?
      • 1...Bxd5
        • 2.Sxe5#
        • 2.Sb6#
      • 1...Kxd5!
    • 1.Qe2?
      • threat
        • 2.Qxd3#
      • 1...Sxc5
        • 2.Sxe5#
      • 1...Be4
        • 2.Sb6#
      • 1...e4
        • 2.Sxe3#
      • 1...Rd4
        • 2.Sa3#
      • 1...dxe2!
    • 1.Qf7+?
      • 1...Bd5
        • 2.Sxe5#
        • 2.Sb6#
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Rxf7!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qxd3#
      • 1...Sxc5
        • 2.Sxe5#
      • 1...dxc2
        • 2.Qd3#
      • 1...Be4
        • 2.Sb6#
      • 1...e4
        • 2.Sxe3#
      • 1...Rd4
        • 2.Sa3#
      • 1...d2
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(d);SBLOCK::S(C)
    • B(g);XB(A)::S(G)
    • B(g);::S(G)
    • S(i);SBLOCK,XP(E)::S(G),XP(e)
    • P(a);OGATEB::QAB(F)
    • P(e);::S(C),XP(b)
  • Tries
    • Try
      • B(A);CHECK
      • Refutation
        • K(c);S_FLIGHT,XB(A)
    • Try
      • Q(F);P_PINP(a)
      • Threat
        • QAB1(F),XP(a)
      • Vars
        • S(i);SBLOCK,XP(E)::S(G),XP(e)
        • B(g);::S(G)
        • P(e);::S(C),XP(b)
        • R(d);SBLOCK::S(C)
      • Refutation
        • P(a);N_SPINP(a),XQ(F)
    • Try
      • Q(F);CHECK
      • Refutation
        • R(d);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F),XP(a)
    • Vars
      • S(i);SBLOCK,XP(E)::S(G),XP(e)
      • P(a);XS(C)::QAB1(F)
      • B(g);::S(G)
      • P(e);::S(C),XP(b)
      • R(d);SBLOCK::S(C)
      • P(a);OGATEB::QAB(F)
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