MESON Chess Problem Database

Problem Display
PID: 146625 (1B4n1/7b/7n/b5p1/2QR2P1/4k3/2pp2PN/2r2RK1 w - - 0 1)

Weiss, Berthold

Good Companions (February), 1918

1B4n1/7b/7n/b5p1/2QR2P1/4k3/2pp2PN/2r2RK1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf1+
      • 2.Sxf1#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Be4
      • 2.Rxe4#
    • 1...Sxg4
      • 2.Sxg4#
    • 1...Sf5
      • 2.Re4#
      • 2.Qd3#
    • 1...d1S
      • 2.Rf3#
  • Tries
    • 1.Rxd2?
      • threat
        • 2.Re2#
        • 2.Qe2#
        • 2.Qd4#
      • 1...Rxf1+
        • 2.Sxf1#
      • 1...Bxd2
        • 2.Ba7#
      • 1...Re1
        • 2.Qd4#
      • 1...Bc3
        • 2.Re2#
        • 2.Qe2#
      • 1...Bb6
        • 2.Re2#
        • 2.Qe2#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sf5
        • 2.Re2#
        • 2.Qe2#
        • 2.Qd3#
      • 1...Kxd2!
    • 1.Qe6+?
      • 1...Be4
        • 2.Qxe4#
      • 1...Kxd4!
    • 1.Qc3+?
      • 1...Ke2
        • 2.Rxd2#
        • 2.Qf3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Bxc3!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Bf2#
      • 1...Rxf1+
        • 2.Sxf1#
      • 1...Sxg4
        • 2.Sxg4#
      • 1...Bd3
        • 2.Qxd3#
      • 1...d1S
        • 2.Rf3#
      • 1...Be4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,XR(A)::S(D),XR(a)
    • B(h);N_GUARD::QAR1(E),XB(h)
    • B(h);N_GUARD::R1(F),XB(h)
    • S(g);XP(G)::S(D),XS(g)
    • P(c);N_PINR(A)::R1(A)
  • Tries
    • Try
      • R(F);XP(c)
      • Threat
        • DUALS(3)
      • Vars
        • R(a);CHECK,XR(A)::S(D),XR(a)
        • B(e);N_GUARD,SBLOCK,XR(F)::B(H)
        • R(a);::QAB1(E)
        • B(h);N_GUARD::QAR1(E),XB(h)
      • Refutation
        • K(d);S_FLIGHT,XR(F)
    • Try
      • Q(E);CHECK
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::QAR1(E),XB(h)
      • Refutation
        • K(d);S_FLIGHT,XR(F)
    • Try
      • Q(E);CHECK
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::QAR1(E),XB(h)
      • Refutation
        • B(e);XQ(E)
  • Actual
    • B(H);
    • Threat
      • B(H)
    • Vars
      • R(a);CHECK,XR(A)::S(D),XR(a)
      • S(g);XP(G)::S(D),XS(g)
      • B(h);N_GUARD::QAR1(E),XB(h)
      • P(c);N_PINR(A)::R1(A)
      • B(h);N_GUARD::R1(F),XB(h)
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