MESON Chess Problem Database

Problem Display
PID: 86672 (1NK5/ppP5/bR6/r2k4/rP1N1P2/b1Q5/1p6/1B6 w - - 0 1)

Folch Gil, Ramon

Grossi, Damien

Schaakmat, 1950

1NK5/ppP5/bR6/r2k4/rP1N1P2/b1Q5/1p6/1B6

#2

9 + 8

6490 yacpdb 2009
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qxc5#
    • 1...Bb5
      • 2.Qc5#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Se3#
        • 2.Se7#
        • 2.Rd6#
        • 2.Qd4#
      • 1...Rxb4
        • 2.Se3#
        • 2.Se7#
        • 2.Rd6#
      • 1...Bxb4
        • 2.Se3#
        • 2.Qd4#
      • 1...Bd3
        • 2.Qd4#
        • 2.Qxd3#
      • 1...axb6!
    • 1.Rb5+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Bxb5
        • 2.Qc5#
      • 1...Rxb5!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Rd6#
        • 2.Qd4#
        • 2.Qb3#
        • 2.Qd3#
        • 2.Qc5#
      • 1...Rxb4
        • 2.Rd6#
      • 1...Rxb5
        • 2.Qd3#
      • 1...Bxb4
        • 2.Qd4#
      • 1...Bxb5
        • 2.Qc5#
      • 1...axb6
        • 2.Qb3#

Anticipated by 24757(1949)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(d);N_GUARD,P_PINP(G)::QAR1(B),XR(d)
    • B(f);S_CUTR(d)::QAR1(B)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(4)
      • Refutation
        • P(g);XR(F)
    • Try
      • R(F);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(B)
        • B(f);XR(F)::QAR1(B)
      • Refutation
        • R(d);XR(F)
  • Actual
    • S(D);
    • Threat
      • DUALS(5)
    • Vars
      • R(c);XP(C)::R1(F)
      • R(d);XS(D)::QAR2(B)
      • B(b);XP(C)::QAR1(B)
      • B(f);XS(D)::QAR1(B)
      • P(g);XR(F)::QAB(B)
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