MESON Chess Problem Database

Problem Display
PID: 187577 (1B4b1/1NQ5/qp2p3/1p1PR1p1/pP1k1p2/K1Rpp3/B7/4b1n1 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

The Problemist, 2018

1B4b1/1NQ5/qp2p3/1p1PR1p1/pP1k1p2/K1Rpp3/B7/4b1n1

#2

9 + 13

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6?
      • threat
        • 2.Re4#
      • 1...Kxe5
        • 2.Qg7#
      • 1...exd5
        • 2.Sf5#
      • 1...Bh7!
    • 1.Rxe3?
      • threat
        • 2.Rcxd3#
        • 2.Qe5#
      • 1...Bxc3
        • 2.Qe5#
      • 1...fxe3
        • 2.Qe5#
      • 1...Bh7
        • 2.Qe5#
      • 1...Sf3
        • 2.Rcxd3#
      • 1...d2
        • 2.Rcd3#
        • 2.Qe5#
      • 1...e5
        • 2.Rcxd3#
        • 2.Qxe5#
      • 1...Kxe3!
    • 1.Rxg5?
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qxf4#
      • 1...e5
        • 2.Qxe5#
      • 1...Sf3!
    • 1.Rxe6?
      • threat
        • 2.Qe5#
        • 2.Qg7#
      • 1...Qxb7
        • 2.Qe5#
      • 1...Bxe6
        • 2.Qe5#
      • 1...Bf7
        • 2.Qe5#
      • 1...Sf3!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rxd3#
      • 1...Kxc3
        • 2.Sb3#
      • 1...Bxc3
        • 2.Re4#
      • 1...bxc5
        • 2.Qxc5#
      • 1...Bh7
        • 2.Sxe6#
      • 1...d2
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(F)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XR(F)::QAB(H)
        • P(l);N_GUARD,XP(E)::S(G)
      • Refutation
        • B(m);
    • Try
      • R(F);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);SBLOCK,XR(C)::QAB1(H)
        • P(g);XR(F)::QAB1(H)
        • B(m);::QAB1(H)
        • S(b);::R1(C),XP(c)
      • Refutation
        • K(f);P_SPINP(c),S_FLIGHT,XR(F)
    • Try
      • R(F);XP(i)
      • Threat
        • QAB1(H)
      • Vars
        • K(f);P-FLIGHT::QAR1(H),XP(g)
        • P(l);::QAB1(H),XP(l)
      • Refutation
        • S(b);
    • Try
      • R(F);XP(l)
      • Threat
        • DUALS(2)
      • Vars
        • Q(j);XS(G)::QAB1(H)
        • B(m);XR(F)::QAB1(H)
        • B(m);::QAB1(H)
      • Refutation
        • S(b);
  • Actual
    • S(G);
    • Threat
      • R1(C),XP(c)
    • Vars
      • K(f);S_FLIGHT,XR(C)::QAR(H)+S(G)
      • B(a);SBLOCK,XR(C)::R1(F)
      • P(k);OGATE,XS(G)::QAB1(H),XP(k)
      • B(m);N_GUARD::S(G),XP(l)
      • P(c);::R1(C)
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