MESON Chess Problem Database

Problem Display
PID: 173149 (2Q5/2b5/B7/1R3N2/2n5/P1P1PKB1/3P4/RN3k2 w - - 0 1)

Clements, RH

Problem Observer, 2005

2Q5/2b5/B7/1R3N2/2n5/P1P1PKB1/3P4/RN3k2

#2

12 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd2+
      • 2.Sxd2#
    • 1...Sxa3
      • 2.Sxa3#
  • Tries
    • 1.d3?
      • threat
        • 2.Sd2#
      • 1...Sd2+
        • 2.Sxd2#
      • 1...Kg1
        • 2.Sd2#
      • 1...Se5+!
    • 1.d4?
      • threat
        • 2.Sd2#
      • 1...Sd2+
        • 2.Sxd2#
      • 1...Kg1
        • 2.Sd2#
      • 1...Se5+!
  • Keys
    • 1.Bf2!
      • 1...Sxd2+
        • 2.Sxd2#
      • 1...Se5+
        • 2.Rxe5#
      • 1...Sxa3
        • 2.Sxa3#
      • 1...Sxe3
        • 2.Sxe3#
      • 1...Bh2
        • 2.Qxc4#
      • 1...Bg3
        • 2.Sxg3#
        • 2.Qxc4#
      • 1...Bf4
        • 2.Qxc4#
      • 1...Ba5
        • 2.Sg3#
        • 2.Qxc4#
      • 1...Be5
        • 2.Qxc4#
      • 1...Bb6
        • 2.Sg3#
        • 2.Qxc4#
      • 1...Bd6
        • 2.Qxc4#
      • 1...Bb8
        • 2.Qxc4#
      • 1...Bd8
        • 2.Sg3#
        • 2.Qxc4#
      • 1...Sb2
        • 2.Rxb2#
      • 1...Sa5
        • 2.Rxa5#
      • 1...Sb6
        • 2.Rxb6#
      • 1...Sd6
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • S(b);CHECK,XP(C)::R(A)+S(B),DCHECK,XS(b)
    • S(b);XP(D)::R(A)+S(B),XS(b)
  • Tries
    • Try
      • P(C);
      • Threat
        • R(A)+S(B),DCHECK
      • Vars
        • S(b);CHECK::R(A)+S(B),DCHECK,XS(b)
        • K(a);P-FLIGHT::R(A)+S(B)
      • Refutation
        • S(b);CHECK
    • Try
      • P(C);
      • Threat
        • R(A)+S(B),DCHECK
      • Vars
        • S(b);CHECK::R(A)+S(B),DCHECK,XS(b)
        • K(a);P-FLIGHT::R(A)+S(B)
      • Refutation
        • S(b);CHECK
  • Actual
    • B(H);
    • Vars
      • S(b);CHECK,XP(C)::R(A)+S(B),DCHECK,XS(b)
      • S(b);CHECK,OGATEB::B(K)+R(I),XS(b)
      • S(b);XP(D)::R(A)+S(B),XS(b)
      • S(b);XP(F)::S(J),XS(b)
      • B(c);OGATE::QAB(L),XS(b)
      • S(b);OGATEB::B(K)+R(I),XS(b)
      • S(b);S_CUTB(c)::S(J)
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