MESON Chess Problem Database

Problem Display
PID: 142983 (3b4/2pN4/ppn2R2/3RP1K1/1pB1k3/3p1N2/5BP1/2nq4 w - - 0 1)

Wielgos, Oskar

Thema Danicum, 1976

3b4/2pN4/ppn2R2/3RP1K1/1pB1k3/3p1N2/5BP1/2nq4

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qb3
      • 2.Sd2#
    • 1...Qxf3
      • 2.gxf3#
    • 1...Qa4
      • 2.Sd2#
    • 1...Qf1
      • 2.Sd2#
    • 1...Qg1
      • 2.Sd2#
    • 1...Qh1
      • 2.Sd2#
    • 1...Qd2+
      • 2.Sxd2#
    • 1...Bxf6+
      • 2.Sxf6#
    • 1...Sd4
      • 2.Rxd4#
    • 1...Sa5
      • 2.Rd4#
    • 1...Sxe5
      • 2.Rd4#
      • 2.Rxe5#
    • 1...Sa7
      • 2.Rd4#
    • 1...Se7
      • 2.Rd4#
      • 2.Rf4#
    • 1...Sb8
      • 2.Rd4#
    • 1...b5
      • 2.Sc5#
  • Tries
    • 1.Rc5?
      • threat
        • 2.Bd5#
      • 1...Qd2+
        • 2.Sxd2#
      • 1...Bxf6+
        • 2.Sxf6#
      • 1...bxc5
        • 2.Sxc5#
      • 1...Qb3
        • 2.Sd2#
      • 1...Se7
        • 2.Rf4#
      • 1...d2!
  • Keys
    • 1.Kg4!
      • threat
        • 2.Rf4#
      • 1...Qxf3+
        • 2.gxf3#
      • 1...Sxe5+
        • 2.Rxe5#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Qd2
        • 2.Sxd2#
      • 1...Se2
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(b);N_GUARD::S(C)
    • Q(b);OGATE,XS(C)::P(B),XQ(b)
    • Q(b);N_GUARD,P_PINP(B)::S(C)
    • Q(b);CHECK,N_GUARD::S(C),XQ(b)
    • B(j);CHECK,XR(H)::S(I),XB(j)
    • S(h);N_GUARD::R1(E),XS(h)
    • S(h);N_GUARD::R1(E)
    • P(g);N_GUARD::S(I)
  • Tries
    • Try
      • R(E);
      • Threat
        • B(D)
      • Vars
        • Q(b);CHECK,N_GUARD::S(C),XQ(b)
        • B(j);CHECK,XR(H)::S(I),XB(j)
        • P(g);XR(E)::S(I),XP(g)
        • Q(b);N_GUARD::S(C)
        • S(h);N_PINR(H)::R1(H)
      • Refutation
        • P(c);
  • Actual
    • K(G);N_SPINR(H),P-FLIGHT,P_SPINS(C)
    • Threat
      • R1(H)
    • Vars
      • Q(b);CHECK,OGATE,XS(C)::P(B),XQ(b)
      • S(h);CHECK,OGATE,XP(F)::R1(E),XS(h)
      • B(j);XR(H)::S(I),XB(j)
      • Q(b);N_PINS(C)::S(C),XQ(b)
      • S(a);N_PINS(C)::S(C)
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