MESON Chess Problem Database

Problem Display
PID: 198400 (r1nN2QB/5p2/1p1R4/nBk1q3/2P1p3/8/N6p/1bR3bK w - - 0 1)

Loedel, Juan Eduardo

Brisbane Courier, 1920

r1nN2QB/5p2/1p1R4/nBk1q3/2P1p3/8/N6p/1bR3bK

#2

9 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Rd5#
    • 1...Qb2
      • 2.Rd5#
    • 1...Qc3
      • 2.Rd5#
    • 1...Qg3
      • 2.Rd5#
    • 1...Qf4
      • 2.Rd5#
    • 1...Qf6
      • 2.Rd5#
    • 1...Qg7
      • 2.Rd5#
    • 1...Qxh8
      • 2.Rd5#
    • 1...Qd5
      • 2.Rxd5#
    • 1...Qe7
      • 2.Rd5#
    • 1...Qe8
      • 2.Rd5#
    • 1...Sb3
      • 2.Sb7#
    • 1...Sc6
      • 2.Sb7#
    • 1...Sb7
      • 2.Sxb7#
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxe5#
        • 2.Qa3#
      • 1...Kxd6
        • 2.Qxe5#
      • 1...Qxg3
        • 2.Rd5#
      • 1...Qxd6
        • 2.Qa3#
      • 1...Qxh8
        • 2.Rd5#
        • 2.Qa3#
      • 1...Bxa2
        • 2.Qa3#
      • 1...Sxc4
        • 2.Qxe5#
      • 1...Sxd6
        • 2.Qxe5#
      • 1...Qa1
        • 2.Rd5#
        • 2.Qa3#
      • 1...Qb2
        • 2.Rd5#
      • 1...Qc3
        • 2.Rd5#
      • 1...Qd4
        • 2.Qa3#
      • 1...Qf4
        • 2.Rd5#
        • 2.Qa3#
      • 1...Qf6
        • 2.Rd5#
        • 2.Qa3#
      • 1...Qg7
        • 2.Rd5#
        • 2.Qa3#
      • 1...Qd5
        • 2.Rxd5#
        • 2.Qa3#
      • 1...Qf5
        • 2.Qa3#
      • 1...Qg5
        • 2.Qa3#
      • 1...Qh5
        • 2.Qa3#
      • 1...Qe6
        • 2.Qa3#
      • 1...Qe7
        • 2.Rd5#
        • 2.Qa3#
      • 1...Qe8
        • 2.Rd5#
        • 2.Qa3#
      • 1...Bd3
        • 2.Qxe5#
      • 1...Be3
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qa3#
      • 1...Sb3
        • 2.Sb7#
        • 2.Qxe5#
      • 1...Sc6
        • 2.Sb7#
      • 1...Sb7
        • 2.Sxb7#
        • 2.Qxe5#
      • 1...Se7
        • 2.Qa3#
      • 1...e3
        • 2.Qxe5#
      • 1...f6
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 10
  • Sets
    • Q(g);N_GUARD::R1(F)
    • Q(g);N_GUARD,XB(I)::R1(F)
    • Q(g);N_GUARD::R1(F),XQ(g)
    • S(e);N_GUARD::S(G)
    • S(e);N_GUARD::S(G),XS(e)
  • Actual
    • Q(H);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);P_SPINQ(g),S_FLIGHT,XR(F)::QAB1(H),XQ(g)
      • Q(g);N_GUARD,XQ(H)::R1(F)
      • Q(g);SBLOCK,XR(F)::QAB(H)
      • B(a);XS(C)::QAB(H)
      • S(e);P_SPINS(e),XP(D)::QAR2(H),XQ(g)
      • S(k);XR(F)::QAR2(H),XQ(g)
      • Q(g);N_GUARD::R1(F)
      • Q(g);::QAB(H)
      • B(a);::QAR2(H),XQ(g)
      • B(b);::QAR2(H),XQ(g)
      • B(b);::QAB(H)
      • S(e);N_GUARD::S(G)
      • S(k);::QAB(H)
      • P(d);::QAR2(H),XQ(g)
      • P(i);::QAB(H)
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