MESON Chess Problem Database

Problem Display
PID: 164152 (1N6/6q1/B2p2P1/2pkp1Np/1Pprp3/4P3/2R3QK/R7 w - - 0 1)

Barth, Michael

StrateGems, 2014

1N6/6q1/B2p2P1/2pkp1Np/1Pprp3/4P3/2R3QK/R7

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Bb7#
    • 1...Qh6
      • 2.Bb7#
    • 1...Qf8
      • 2.Bb7#
    • 1...Qh8
      • 2.Bb7#
    • 1...Qxg6
      • 2.Bb7#
    • 1...Qb7
      • 2.Bxb7#
    • 1...Qg8
      • 2.Bb7#
    • 1...Rd1
      • 2.Bxc4#
      • 2.Rxd1#
      • 2.Qxe4#
    • 1...Rd2
      • 2.Bxc4#
      • 2.Rxd2#
      • 2.Qxd2#
    • 1...Rd3
      • 2.Bxc4#
      • 2.Qxe4#
    • 1...cxb4
      • 2.Ra5#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Bxc4#
        • 2.Qxe4#
      • 1...Qxg6
        • 2.Bxc4#
        • 2.Bb7#
      • 1...Rd2
        • 2.Bxc4#
        • 2.Rdxd2#
        • 2.Rcxd2#
        • 2.Qxd2#
      • 1...c3
        • 2.Qxe4#
      • 1...cxb4!
    • 1.Qd2?
      • threat
        • 2.Bxc4#
      • 1...Rxd2+
        • 2.Rxd2#
      • 1...cxb4
        • 2.Ra5#
      • 1...c3!
    • 1.exd4?
      • threat
        • 2.Qxe4#
      • 1...Kxd4
        • 2.Qxe4#
        • 2.Qd2#
      • 1...Qxg6!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Qxe4#
      • 1...Qxg6
        • 2.Bb7#
      • 1...Rxd2
        • 2.Qxd2#
      • 1...cxb4
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(i);N_GUARD::B(H)
    • Q(i);N_GUARD,XP(I)::B(H)
    • Q(i);N_GUARD::B(H),XQ(i)
    • P(d);OGATEB,XP(F)::R(A)
  • Tries
    • Try
      • R(A);P_PINR(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(C),XP(c)
      • Refutation
        • P(d);XP(F)
    • Try
      • Q(C);N_PINP(c),P_PINR(b)
      • Threat
        • B(H),XP(a)
      • Vars
        • R(b);CHECK,N_SPINR(b),OGATE,XQ(C)::R(B),XR(b)
        • P(d);OGATEB,XP(F)::R(A)
      • Refutation
        • P(a);
    • Try
      • P(E);XR(b)
      • Threat
        • QAB1(C),XP(c)
      • Refutation
        • Q(i);XP(I)
  • Actual
    • R(B);P_PINR(b)
    • Threat
      • QAB1(C),XP(c)
    • Vars
      • Q(i);N_GUARD,XP(I)::B(H)
      • R(b);N_SPINR(b),OGATE,P_PINQ(C),XR(B)::QAR(C),XR(b)
      • P(d);OGATEB,XP(F)::R(A)
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