MESON Chess Problem Database

Problem Display
PID: 184234 (6b1/2pprB1p/8/R3N3/3Pk1P1/1R2NpQ1/2PprP1n/K2b4 w - - 0 1)

Novitski, Petr Adrinovich

Kudesnik, 2018

6b1/2pprB1p/8/R3N3/3Pk1P1/1R2NpQ1/2PprP1n/K2b4

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qf4#
    • 1...Rxe5
      • 2.Qxe5#
    • 1...Sxg4
      • 2.Qxg4#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Qf4#
      • 1...Kxd4
        • 2.Rb4#
      • 1...Rxf7!
    • 1.Bd5+?
      • 1...Kxd4
        • 2.Sf5#
        • 2.Rd3#
        • 2.Qf4#
        • 2.c3#
      • 1...Bxd5!
    • 1.Bg6+?
      • 1...Kxd4
        • 2.Rd3#
        • 2.Qf4#
        • 2.c3#
      • 1...hxg6!
    • 1.Ra4?
      • threat
        • 2.d5#
      • 1...c5
        • 2.dxc5#
      • 1...d5!
    • 1.Qxf3+?
      • 1...Kxd4
        • 2.Sf5#
        • 2.Rd3#
        • 2.Rd5#
        • 2.Qd5#
        • 2.Qf4#
        • 2.c3#
      • 1...Sxf3!
    • 1.d5?
      • threat
        • 2.Rb4#
        • 2.Ra4#
      • 1...Kd4
        • 2.Qf4#
      • 1...Rxf2
        • 2.Ra4#
      • 1...c5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qf4#
      • 1...Kxd4
        • 2.Ra4#
      • 1...Rxf7
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(f);P-FLIGHT,XP(G)::QAR2(F)
    • R(i);OGATE,XS(J)::QAR1(F),XR(i)
    • S(d);OGATE,XP(H)::QAR2(F),XS(d)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • K(f);OGATEB,P-FLIGHT,XP(G)::R(D)
      • Refutation
        • R(i);XB(K)
    • Try
      • B(K);CHECK
      • Refutation
        • B(k);XB(K)
    • Try
      • B(K);CHECK
      • Refutation
        • P(j);XB(K)
    • Try
      • R(I);
      • Threat
        • R(I)+P(G)
      • Vars
        • P(g);OGATE::R(I)+P(G),XP(g)
      • Refutation
        • P(h);
    • Try
      • Q(F);CHECK,XP(e)
      • Refutation
        • S(d);XQ(F)
    • Try
      • P(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);P-FLIGHT::QAR2(F)
        • R(c);XP(C)::R(I)
      • Refutation
        • P(g);
  • Actual
    • S(J);
    • Threat
      • QAR1(F)
    • Vars
      • K(f);OGATEB,P-FLIGHT,XP(G)::R(I)
      • R(i);N_GUARD,XB(K)::QAR1(F)
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