MESON Chess Problem Database

Problem Display
PID: 106216 (6B1/3p4/1K1P4/1Qp5/N1P2R2/3kb1N1/1p2R2r/1qn1B1n1 w - - 0 1)

Wrobel, Marian

Praca, 1954

6B1/3p4/1K1P4/1Qp5/N1P2R2/3kb1N1/1p2R2r/1qn1B1n1

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Bh7#
    • 1...Rf2
      • 2.Bh7#
    • 1...Rg2
      • 2.Bh7#
    • 1...Rh7
      • 2.Bxh7#
    • 1...Sb3
      • 2.Qxb3#
    • 1...Sh3
      • 2.Bh7#
  • Tries
    • 1.Rd2+?
      • 1...Rxd2
        • 2.Bh7#
      • 1...Bxd2!
  • Keys
    • 1.Qxb2!
      • threat
        • 2.Qxb1#
      • 1...Qxb2+
        • 2.Sxb2#
      • 1...Rxe2
        • 2.Bh7#
      • 1...Bxf4
        • 2.Sxc5#
      • 1...Qa2
        • 2.Qc3#
      • 1...Qc2
        • 2.Qxc2#
      • 1...Qa1
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD,XR(B)::B(J)
    • R(e);N_GUARD::B(J)
    • R(e);N_GUARD::B(J),XR(e)
    • S(b);N_GUARD::QAR2(G),XS(b)
    • S(c);S_CUTR(e)::B(J)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • R(e);XR(B)::B(J)
      • Refutation
        • B(g);XR(B)
  • Actual
    • Q(G);P_SPINQ(G),XP(d)
    • Threat
      • QAB(G),XQ(a)
    • Vars
      • Q(a);CHECK,XQ(G)::S(D),XQ(a)
      • R(e);N_GUARD,XR(B)::B(J)
      • B(g);N_GUARD,XR(F)::S(D),XP(h)
      • Q(a);N_PINQ(G)::QAR1(G)
      • Q(a);N_PINQ(G)::QAB1(G),XQ(a)
      • Q(a);N_PINQ(G)::QAB1(G)
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