MESON Chess Problem Database

Problem Display
PID: 157194 (K7/2pQ3p/R4nkP/3p3p/3P1B2/1B2p3/3r2b1/6R1 w - - 0 1)

Handloser, Ralf Chris

The Problemist, 2015

K7/2pQ3p/R4nkP/3p3p/3P1B2/1B2p3/3r2b1/6R1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Rxg2#
    • 1...Rc2
      • 2.Bxc2#
    • 1...Rd3
      • 2.Rxg2#
    • 1...Rxd4
      • 2.Rxg2#
    • 1...e2
      • 2.Rxg2#
  • Tries
    • 1.Bc2+?
      • 1...Rd3
        • 2.Bxd3#
        • 2.Rxg2#
      • 1...Rxc2!
    • 1.Qxd5?
      • threat
        • 2.Qe4#
      • 1...Rxd4
        • 2.Rxg2#
      • 1...c6
        • 2.Qg5#
      • 1...h4!
  • Keys
    • 1.Bxd5!
      • threat
        • 2.Be4#
      • 1...Rxd4
        • 2.Rxg2#
      • 1...h4
        • 2.Qg4#
      • 1...c6
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::R(A),XB(b)
    • R(a);N_GUARD::B(B),XR(a)
    • R(a);N_GUARD,XP(C)::R(A),XB(b)
    • P(c);S_CUTR(a)::R(A),XB(b)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • R(a);XB(B)
    • Try
      • Q(G);P_SPINQ(G),XP(d)
      • Threat
        • QAB(G)
      • Vars
        • R(a);N_GUARD,XP(C)::R(A),XB(b)
        • P(h);N_PINQ(G),N_SPINS(f)::QAR1(G)
      • Refutation
        • P(e);
  • Actual
    • B(B);P_SPINB(B),XP(d)
    • Threat
      • B(B)
    • Vars
      • R(a);N_GUARD,XP(C)::R(A),XB(b)
      • P(e);N_GUARD::QAR2(G)
      • P(h);N_PINB(B),N_SPINS(f)::B(B)
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