MESON Chess Problem Database

Problem Display
PID: 33695 (8/1n2Kp2/1p3QbR/r1kN2p1/R1P5/P3bn2/BrN5/B7 w - - 0 1)

Hirschenson, Aaron

The Problemist, 2001

8/1n2Kp2/1p3QbR/r1kN2p1/R1P5/P3bn2/BrN5/B7

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa2
      • 2.Qxb6#
    • 1...Rxc2
      • 2.Qxb6#
    • 1...Rb4
      • 2.axb4#
    • 1...Bd3
      • 2.Qc6#
    • 1...Be4
      • 2.Qc6#
    • 1...Bf5
      • 2.Qc6#
    • 1...Bh5
      • 2.Qc6#
    • 1...Bh7
      • 2.Qc6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sd8
      • 2.Qd6#
    • 1...b5
      • 2.Qb6#
  • Tries
    • 1.Scb4?
      • threat
        • 2.Qxb6#
      • 1...Rxa2
        • 2.Qc6#
      • 1...Rxb4
        • 2.axb4#
      • 1...Rb3
        • 2.Qc6#
      • 1...Rb5
        • 2.Sa6#
      • 1...Ra6
        • 2.Sxa6#
      • 1...b5
        • 2.Qb6#
      • 1...Sd6!
    • 1.Rxa5+?
      • 1...Rb5
        • 2.Rxb5#
        • 2.Qxb6#
      • 1...Sxa5
        • 2.Qd6#
      • 1...b5
        • 2.Qb6#
      • 1...bxa5!
  • Keys
    • 1.Sdb4!
      • threat
        • 2.Qc6#
      • 1...Rxb4
        • 2.axb4#
      • 1...Bxc2
        • 2.Qxb6#
      • 1...Be4
        • 2.Qxb6#
      • 1...Sd4
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD,XB(B)::QAB1(H),XP(g)
    • R(a);N_GUARD,XS(C)::QAB1(H),XP(g)
    • R(a);OGATE::P(D),XR(a)
    • B(h);::QAR1(H)
    • S(i);N_GUARD::QAB1(H),XS(i)
    • S(i);N_GUARD::QAB1(H)
    • P(g);S_CUTR(a)::QAB1(H)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(H),XP(g)
      • Vars
        • R(a);XB(B)::QAR1(H)
        • R(a);OGATE,XS(C)::P(D),XR(a)
        • R(a);::QAR1(H)
        • R(d);N_GUARD::S(C)
        • R(d);N_GUARD::S(C),XR(d)
        • P(g);::QAB1(H)
      • Refutation
        • S(i);
    • Try
      • R(E);CHECK,XR(d)
      • Vars
        • S(i);XR(E)::QAB1(H)
        • P(g);P_SPINP(g)::QAB1(H)
      • Refutation
        • P(g);XR(E)
  • Actual
    • S(G);
    • Threat
      • QAR1(H)
    • Vars
      • R(a);OGATE,XS(G)::P(D),XR(a)
      • B(h);XS(C)::QAB1(H),XP(g)
      • B(h);::QAB1(H),XP(g)
      • S(c);N_GUARD::QAR2(H)
      • S(c);N_GUARD::QAR2(H),XS(c)
      • S(i);N_GUARD::QAB1(H),XS(i)
      • S(i);N_GUARD::QAB1(H)
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