MESON Chess Problem Database

Problem Display
PID: 206492 (1B6/8/8/p2K4/r1p4N/4k2p/2P1pNR1/4R2n w - - 0 1)

Voronov, V

64 Shakhmatnoe obozrenie, 1925

1B6/8/8/p2K4/r1p4N/4k2p/2P1pNR1/4R2n

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sxh3?
      • threat
        • 2.Bf4#
        • 2.Rexe2#
        • 2.Rgxe2#
      • 1...Sf2
        • 2.Bf4#
      • 1...Sg3
        • 2.Bf4#
      • 1...c3
        • 2.Rexe2#
        • 2.Rgxe2#
      • 1...Kd2!
    • 1.Se4?
      • threat
        • 2.Rexe2#
        • 2.Rgxe2#
      • 1...Sf2
        • 2.Rg3#
      • 1...Sg3
        • 2.Rxg3#
      • 1...hxg2!
    • 1.Ba7+?
      • 1...Kf4
        • 2.Sxh3#
        • 2.Rg4#
      • 1...Kd2!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Sg4#
      • 1...exd1Q+
        • 2.Sxd1#
      • 1...exd1R+
        • 2.Sxd1#
      • 1...Sxf2
        • 2.Rg3#
      • 1...exd1B
        • 2.Sxd1#
      • 1...c3
        • 2.Rd3#

This is a version of 206491

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);XP(d)
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD::R(D)
        • S(a);N_GUARD::R(D),XS(a)
      • Refutation
        • P(d);XR(D)
    • Try
      • B(G);CHECK
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
  • Actual
    • R(A);N_PINP(b)
    • Threat
      • S(C)
    • Vars
      • P(b);CHECK,XR(A)::S(C),XQ(b)
      • P(b);CHECK,XR(A)::S(C),XR(b)
      • S(a);N_GUARD,SBLOCK,XS(C)::R(D)
      • P(b);XR(A)::S(C),XB(b)
      • P(f);N_GUARD::R1(A)
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