MESON Chess Problem Database

Problem Display
PID: 210377 (2R5/1p1K4/3B1p2/3k4/P2pRrP1/2p1p3/Pnr1P3/1Q1N4 w - - 0 1)

Schurle, Anton

Deutsche Schachblatter, 1942

2R5/1p1K4/3B1p2/3k4/P2pRrP1/2p1p3/Pnr1P3/1Q1N4

#2

10 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Rc5#
    • 1...Rd2
      • 2.Rc5#
    • 1...Rxe2
      • 2.Rc5#
    • 1...Rxe4
      • 2.Rc5#
    • 1...Sxd1
      • 2.Qxb7#
    • 1...Sd3
      • 2.Qxb7#
    • 1...Sxa4
      • 2.Qxb7#
    • 1...Sc4
      • 2.Qxb7#
    • 1...f5
      • 2.Re5#
  • Tries
    • 1.Sxe3+?
      • 1...Kxe4
        • 2.Re8#
      • 1...dxe3!
    • 1.Rxf4?
      • threat
        • 2.Rc5#
      • 1...Sxa4
        • 2.Qb3#
        • 2.Qxb7#
      • 1...Sd3
        • 2.Qb3#
        • 2.Qxb7#
      • 1...b6!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rcxd4#
      • 1...Kxc4
        • 2.Sxe3#
      • 1...Kxe4
        • 2.Sxc3#
      • 1...Rxe4
        • 2.Rc5#
      • 1...Sxc4
        • 2.Qxb7#
      • 1...Rd2
        • 2.Rc5#
      • 1...d3
        • 2.Sxe3#
        • 2.Rcd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(b);::R1(J)
    • R(b);XP(D)::R1(J)
    • R(f);SBLOCK,XR(F)::R1(J)
    • S(a);OGATE,XS(B)::QAB(A),XP(i)
    • S(a);OGATE::QAB(A),XP(i)
    • S(a);OGATE,XP(E)::QAB(A),XP(i)
    • P(h);N_GUARD::R1(F)
  • Tries
    • Try
      • S(B);CHECK,XP(d)
      • Vars
        • K(g);P_SPINR(b),S_FLIGHT,XR(F)::R(J)
      • Refutation
        • P(e);XS(B)
    • Try
      • R(F);XR(f)
      • Threat
        • R1(J)
      • Refutation
        • P(i);
  • Actual
    • R(J);
    • Threat
      • R1(J),XP(e)
    • Vars
      • K(g);P_SPINP(e),S_FLIGHT,XR(J)::S(B),XP(d)
      • K(g);P_SPINP(e),P_SPINR(b),S_FLIGHT,XR(F)::S(B),XP(c)
      • R(f);SBLOCK,XR(F)::R1(J)
      • S(a);OGATE,SBLOCK,XR(J)::QAB(A),XP(i)
      • R(b);::R1(J)
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