MESON Chess Problem Database

Problem Display
PID: 235088 (r1r5/3Q2bq/2pB4/3Pp2p/1P1Pk2p/1B2p3/4N2K/2RR2Nb w - - 0 1)

Shanshin, Valery Yurevich

Gaudium, 2015

r1r5/3Q2bq/2pB4/3Pp2p/1P1Pk2p/1B2p3/4N2K/2RR2Nb

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Qxh7#
    • 1...Bh6
      • 2.Qxh7#
    • 1...Bf8
      • 2.Qxh7#
    • 1...Bh8
      • 2.Qxh7#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Sc3#
        • 2.Bc2#
      • 1...exd4
        • 2.Qf4#
      • 1...cxd5
        • 2.Bxd5#
      • 1...Bf6
        • 2.Bc2#
        • 2.Qxh7#
      • 1...Qf5
        • 2.Bc2#
      • 1...Ra3
        • 2.Sc3#
      • 1...Ra2!
    • 1.dxe5?
      • threat
        • 2.Bc2#
        • 2.Rc4#
        • 2.Rd4#
      • 1...cxd5
        • 2.Bxd5#
        • 2.Rd4#
      • 1...Ra2
        • 2.Rc4#
        • 2.Rd4#
      • 1...Ra3
        • 2.Rc4#
        • 2.Rd4#
      • 1...c5
        • 2.Bc2#
        • 2.Rc4#
      • 1...Bxe5+!
  • Keys
    • 1.Rc4!
      • threat
        • 2.dxe5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...exd4
        • 2.Sc3#
      • 1...cxd5
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(h);OGATE::QAB(K),XQ(i)
  • Tries
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);N_GUARD,XP(H)::QAR1(K)
        • P(g);OGATE,XP(I)::B(F),XP(g)
        • Q(i);::B(F)
        • R(j);::S(D)
      • Refutation
        • R(j);P_PINS(D)
    • Try
      • P(H);XP(e)
      • Threat
        • DUALS(3)
      • Refutation
        • B(h);CHECK,XP(H)
  • Actual
    • R(A);
    • Threat
      • R(A)+P(H),XP(e)
    • Vars
      • K(c);S_FLIGHT,XP(I)::S(D)
      • P(e);P_SPINP(e),XP(H)::S(D)
      • P(g);SBLOCK,XP(I)::B(F)
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