MESON Chess Problem Database

Problem Display
PID: 266593 (2Q3B1/bb3q2/1n3R2/2p3r1/p3kN2/3NP1B1/4PK2/2R5 w - - 0 1)

Suvorov, Ivan

Zadachi i Etyudi, 2011

2Q3B1/bb3q2/1n3R2/2p3r1/p3kN2/3NP1B1/4PK2/2R5

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.Qf5#
    • 1...Rg4
      • 2.Qf5#
    • 1...Rf5
      • 2.Qxf5#
    • 1...Rg6
      • 2.Qf5#
    • 1...Rg7
      • 2.Qf5#
    • 1...Rxg8
      • 2.Qf5#
    • 1...Sd5
      • 2.Rc4#
  • Tries
    • 1.Qe6+?
      • 1...Re5
        • 2.Sxc5#
        • 2.Qxe5#
      • 1...Qxe6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sc3#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Rf5+
        • 2.Qxf5#
      • 1...Kxd5
        • 2.Qxb7#
      • 1...Qxd5
        • 2.Rf4#
      • 1...Rxd5
        • 2.Qg4#
      • 1...Bxd5
        • 2.Sxc5#
      • 1...Sxd5
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(d);N_GUARD,XB(F)::QAB1(I)
    • R(d);N_GUARD::QAB1(I)
    • R(d);N_GUARD,P_PINS(G)::QAB1(I),XR(d)
    • R(d);N_GUARD,XB(J)::QAB1(I)
    • S(e);N_GUARD,S_CUTQ(h)::R(A)
  • Tries
    • Try
      • Q(I);CHECK
      • Refutation
        • Q(h);XQ(I)
  • Actual
    • S(G);P_SPINR(H)
    • Threat
      • S(G)
    • Vars
      • Q(h);CHECK,XR(H)::S(G),XQ(h)
      • R(d);CHECK,N_GUARD,N_PINR(H)::QAB1(I),XR(d)
      • K(b);OGATEB,P_SPINQ(h),S_FLIGHT,XS(G)::QAB(I),XB(g)
      • Q(h);N_GUARD,N_PINR(H),XS(G)::R1(H)
      • R(d);N_GUARD,SBLOCK,XS(G)::QAR2(I)
      • B(g);SBLOCK,XS(G)::S(D),XP(c)
      • S(e);N_GUARD,SBLOCK,XS(G)::R(A)
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